Ochiltree
Ochiltree County ( OK-əl-TREE) is a county located in the panhandle of the U.S. state of Texas. As of the 2020 census, its population was 10,015. The county seat is Perryton.

Oldham
Oldham County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,758. Its county seat is Vega.

Parker
Parker County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 148,222. The county seat is Weatherford.

Rains
Rains County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 12,164. Its seat is Emory.

Randall
Randall County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 140,753. Its county seat is Canyon.

Roberts
Roberts County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 827, making it the eighth-least populous county in Texas. Its county seat is Miami, which is also the county's only incorporated community.

Rockwall
Rockwall County is a county in the U.S. state of Texas. As of the 2020 census, the population was 107,819, and was estimated to be 131,307 in 2023, and 137,044 in 2024. Its county seat is Rockwall and both the county and city are named for a wall-like subterranean rock formation that runs throughout the county.

Upshur
Upshur County is a county located in the eastern part of the U.S. state of Texas. As of the 2020 census, its population was 40,892. The county seat is Gilmer.

San Saba
San Saba County is a county located on the Edwards Plateau in western Central Texas, United States. As of the 2020 census, its population was 5,730. Its county seat is San Saba.

Somervell
Somervell County is a county on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 9,205. Its county seat is Glen Rose.

Stephens
Stephens County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 9,101. Its county seat is Breckenridge.

Stonewall
Stonewall County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,245. Its county seat is Aspermont.

Terry
Terry County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 11,831. Its county seat is Brownfield.

Titus
Titus County is a county located in the northeastern region of the U.S. state of Texas. As of the 2020 census, its population was 31,247. Its county seat is Mount Pleasant.

Uvalde
Uvalde County ( yoo-VAL-dee; Spanish: Condado de Uvalde) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 24,564. Its county seat is Uvalde.

Ward
Ward County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 11,644. The county seat is Monahans.

Williamson
Williamson County (sometimes abbreviated as "Wilco") is a county in the U.S. state of Texas. As of the 2020 census, its population was 609,017. The 2024 population estimate was 727,480.

Wise
Wise County is a county in the U.S. state of Texas. As of the 2020 census, its population was 68,632. Its county seat is Decatur.

Zavala
Zavala County is a county in the U.S. state of Texas. As of the 2020 census, the population was 9,670, and was estimated to be 9,209 in 2024. The county seat and largest city is Crystal City.

Archer
Archer County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 8,560. Its county seat is Archer City.

Armstrong
Armstrong County is a county located in the U.S. state of Texas. As of the 2020 census, the population of Armstrong County was 1,848. It is in the Texas Panhandle and its county seat is Claude.

Bastrop
Bastrop County is located in the U.S. state of Texas. It is in Central Texas and its county seat is Bastrop. As of the 2020 census, the population was 97,216.

Blanco
Blanco County (Spanish: "white", BLANG-koh) is a United States county located in the U.S. state of Texas. It is located in Central Texas and its county seat is Johnson City.
As of the 2020 census, the population was 11,374.

Brooks
Brooks County is a county in Texas, United States, and Falfurrias is its county seat. Its population was 7,076, approximately 88% Latino per the 2020 census. It is one of Texas's poorest counties.

Burnet
Burnet County ( BUR-nit) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 49,130. Its county seat is Burnet.

Camp
Camp County is a county in the eastern part of Texas. As of the 2020 census, its population was 12,464. Its seat is Pittsburg.

Castro
Castro County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 7,371. Its county seat is Dimmitt.

Cochran
Cochran County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 2,547. The county seat is Morton.

Concho
Concho County is a county located on the Edwards Plateau in the U.S. state of Texas. At the 2020 census, the population was 3,303. Its county seat is Paint Rock.

Coryell
Coryell County ( KOR-yel) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 83,093. The county seat is Gatesville.

Crane
Crane County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 4,675. The county seat is Crane.

Dawson
Dawson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 12,456. The county seat is Lamesa.

DeWitt
DeWitt County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 19,824. The county seat is Cuero.

Dimmit
Dimmit County ( DIM-it) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 8,615. Its county seat is Carrizo Springs.

Edwards
Edwards County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 1,422. The county seat is Rocksprings.

Fayette
Fayette County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 24,435. Its county seat is La Grange.

Franklin
Franklin County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 10,359. The county seat is Mount Vernon.

Garza
Garza County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,816, of which most of the population were residing in its county seat, and only incorporated municipality, Post. The county was created in 1876 and later organized in 1907.

Gonzales
Gonzales County is a county in the U.S. state of Texas, adjacent to Greater Austin-San Antonio. As of the 2020 census, its population was 19,653. The county is named for its county seat, the city of Gonzales.

Gray
Gray County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 21,227. The county seat is Pampa.

Grimes
Grimes County is a county located in southeastern Texas, United States. As of the 2020 census, its population was 29,268. The seat of the county is Anderson.

Hall
Hall County is a county located in the U.S. state of Texas. As of the 2020 census, the population is 2,825. Its county seat is Memphis.

Hansford
Hansford County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,285. Its county seat is Spearman.

Hill
Hill County is a county in the U.S. state of Texas. As of the 2020 census, its population was 35,874. Its county seat is Hillsboro.

Howard
Howard County is a county located in the U.S. state of Texas. At the 2020 census, its population was 34,860. Its county seat is Big Spring.

Hutchinson
Hutchinson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 20,617. Its county seat is Stinnett.

Jim Hogg
Jim Hogg County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 4,838. Its county seat is Hebbronville.

Johnson
Johnson County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 179,927. Its county seat is Cleburne.

Kent
Kent County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 753, making it the sixth-least populous county in Texas. Its county seat is Jayton.

Kerr
Kerr County ( KUR) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, the population was 52,598, and was estimated to be 53,990 in 2024. The county seat and the largest city is Kerrville.

Knox
Knox County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,353. Its county seat is Benjamin.

La Salle
La Salle County is a county in Texas. As of the 2020 census, its population was 6,664. Its county seat is Cotulla.

Live Oak
Live Oak County is a county in the U.S. state of Texas. It was named for its native groves of live oak. George West is its county seat.

Lubbock
Lubbock County is a county located in the U.S. state of Texas. The 2020 census placed the population at 310,639. Its county seat and largest city is Lubbock.

McLennan
McLennan County is a county located on the Edwards Plateau in Central Texas. As of the 2020 census, its population was 260,579. Its county seat and largest city is Waco.

Mason
Mason County is a rural county located on the Edwards Plateau in the U.S. state of Texas. At the 2020 census, its population was 3,953. Its county seat is Mason.

Midland
Midland County is a county located in the U.S. state of Texas. As of 2020, the population was 169,983. The county seat is Midland.

Montgomery
Montgomery County is a county in the U.S. state of Texas. As of the 2020 census, the population was 620,443, and was estimated to be 749,613 in 2024. Its county seat is Conroe.

Navarro
Navarro County ( nə-VARR-oh) is a county in the U.S. state of Texas. As of the 2020 census, the population was 52,624. Its county seat is Corsicana.

Nolan
Nolan County is a county located in the west-central region of the U.S. state of Texas. As of the 2020 census, its population was 14,738. Its county seat is Sweetwater.

Briscoe
Briscoe County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 1,435. Its county seat is Silverton.

Brown
Brown County is a county in central Texas. As of the 2020 census, the population was 38,095. Its county seat is Brownwood.

Caldwell
Caldwell County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 45,883, and was estimated to be 52,430 in 2024, Its county seat is Lockhart. The county was founded on March 6, 1848 and named after Mathew Caldwell, a ranger captain who fought in the Battle of Plum Creek against the Comanches and against Santa Anna's armies during the Texas Revolution.

Cameron
Cameron County is the southernmost county in the U.S. state of Texas. As of the 2020 census, its population was 421,017. Its county seat is Brownsville.

Carson
Carson County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,807. The county seat is Panhandle.

Cass
Cass County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 28,454. The county seat is Linden.

Comal
Comal County ( KOH-mal) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 161,501. Comal County is known for its rich German-Texan and European history.

Cherokee
Cherokee County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 50,412. The county seat is Rusk, which lies 130 miles southeast of Dallas and 160 miles north of Houston.

Clay
Clay County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 10,218. The county seat is Henrietta.

Coke
Coke County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 3,285. Its county seat is Robert Lee.

Collin
Collin County is a county in the northern part of the U.S. state of Texas. It is part of the Dallas-Fort Worth-Arlington metropolitan statistical area, and a small portion of the city of Dallas is in the county. At the 2020 United States census, the county's population was 1,064,465, making it Texas's sixth-most populous county and the 43rd-largest county by population in the United States.

Collingsworth
Collingsworth County is a county in the U.S. state of Texas. As of the 2020 census, its population was 2,652. Its county seat is Wellington.

Orange
Orange County is a county located in the very southeastern corner of the U.S. state of Texas, sharing a boundary with Louisiana, within the Golden Triangle of Texas. As of the 2020 census, its population was 84,808. The county seat is the city of Orange, and it falls within the Beaumont–Port Arthur metropolitan area.

Parmer
Parmer County is a county located in the southwestern Texas Panhandle on the High Plains of the Llano Estacado in the U.S. state of Texas. As of the 2020 Census, the population was 9,869. The county seat is Farwell.

Reagan
Reagan County is a county on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 3,385. The county seat is Big Lake.

Real
Real County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 2,758. The county seat is Leakey.

Red River
Red River County is a county in the U.S. state of Texas. As of the 2020 census, its population was 11,587. Its county seat is Clarksville.

Robertson
Robertson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 16,757. Its county seat is Franklin.

Runnels
Runnels County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 9,900. Its county seat is Ballinger.

Sabine
Sabine County is a county located on the central eastern border of the U.S. state of Texas. As of the 2020 census, its population was 9,894. The county was organized on December 14, 1837, and named for the Sabine River, which forms its eastern border.

Scurry
Scurry County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 16,932. Its county seat is Snyder, which is the home for Western Texas College.

Shackelford
Shackelford County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,105. Its county seat is Albany.

Shelby
Shelby County is a county located in the far eastern portion of the U.S. state of Texas. As of the 2020 census, its population was 24,022. Its county seat is Center.

Smith
Smith County is a county in the U.S. state of Texas. As of the 2020 census, its population was 233,479. Its county seat is Tyler.

Starr
Starr County is located in the U.S. state of Texas. As of the 2020 census, its population was 65,920. Its county seat is Rio Grande City.

Sterling
Sterling County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 1,372, making it the ninth-least populous county in Texas. Its county seat is Sterling City.

Sutton
Sutton County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, the population was 3,372. Its county seat is Sonora.

Swisher
Swisher County is a county in the U.S. state of Texas. As of the 2020 census, its population was 6,971. Its county seat is Tulia.

Taylor
Taylor County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 143,208. Its county seat is Abilene.

Throckmorton
Throckmorton County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,440. Its county seat is Throckmorton.

Tom Green
Tom Green County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 120,003. Its county seat is San Angelo.

Travis
Travis County is located in Central Texas. As of the 2020 census, the population was 1,290,188. It is the fifth-most populous county in Texas.

Borden
Borden County is a rural county located in the U.S. state of Texas. It is in West Texas and its county seat is Gail.
As of the 2020 census, its population was 631, making it the fifth-least populous county in Texas.

Tyler
Tyler County is a county located in the U.S. state of Texas. It is in East Texas and its seat is Woodville. As of the 2020 census, its population was 19,798.

Van Zandt
Van Zandt County is a county located in the U.S. state of Texas, in the northeastern part of the state. As of the 2020 census, its population was 59,541. Its county seat is Canton.

Victoria
Victoria County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 91,319. Its county seat is also named Victoria.

Washington
Washington County is a county in Texas. As of the 2020 census, its population was 35,805. Its county seat is Brenham, which is located along U.S. Highway 290, 72 miles northwest of Houston.

Wheeler
Wheeler County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 4,990. Its county seat is Wheeler.

Wichita
Wichita County ( WITCH-ih-taw) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 129,350. The county seat is Wichita Falls.

Willacy
Willacy County is a county in the U.S. state of Texas. As of the 2020 census, its population was 20,164. Its county seat is Raymondville.

Wood
Wood County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 44,843. Its county seat is Quitman.

Anderson
Anderson County is a county in the U.S. state of Texas. Located within East Texas, its county seat is Palestine. As of the 2020 United States census, the population of Anderson County was 57,922.

Atascosa
Atascosa County ( AT-əs-KOH-sə) is a county located in the U.S. state of Texas. It is in South Texas and its county seat is Jourdanton.
As of the 2020 United States Census, its population was 48,981.

Austin
Austin County is a rural, agricultural dominated county in the U.S. state of Texas. As of the 2020 census, its population was 30,167. Its seat is Bellville.

Bailey
Bailey County is a county located in the U.S. state of Texas. It is in West Texas and its county seat is Muleshoe. As of the 2020 census, its population was 6,904.

Baylor
Baylor County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,465. Its county seat is Seymour.

Bee
Bee County is a county located in the U.S. state of Texas. It is in South Texas and its county seat is Beeville. As of the 2020 census, its population was 31,047.

Bexar
Bexar County ( BAIR or BAY-ər; Spanish: Béxar [ˈbexaɾ]) is a county in the U.S. state of Texas. It is in South Texas and its county seat is San Antonio.
As of the 2020 census, the population was 2,009,324, making it the state's fourth-most populous county.

Bosque
Bosque County ( BOSS-kee) is a county located in the greater Waco area. The county sits just northwest of Waco in the U.S. state of Texas. As of the 2020 census, the population was 18,235.

Brazoria
Brazoria County ( brə-ZOR-ee-ə) is a county in the U.S. state of Texas. As of the 2020 census, the population of the county was 372,031. The county seat is Angleton.

Kimble
Kimble County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 4,286. Its county seat is Junction.

Kinney
Kinney County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,129. Its county seat is Brackettville.

Lamar
Lamar County () is a county located in the U.S. state of Texas, in the Northeast Texas region. As of the 2020 census, its population was 50,088. Its county seat is Paris.

Lampasas
Lampasas County ( lam-PASS-əs) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 21,627. Its county seat is Lampasas.

Lavaca
Lavaca County ( lə-VAH-kə) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 20,337. Its county seat is Hallettsville.

Lee
Lee County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 17,478. Its county seat is Giddings.

Liberty
Liberty County is a county in the U.S. state of Texas. As of the 2020 census, its population was 91,628. The county seat is Liberty.

Limestone
Limestone County is a county in the U.S. state of Texas. As of the 2020 census, its population was 22,146. Its county seat is Groesbeck.

Lipscomb
Lipscomb County ( LIP-skəm) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,059. Its county seat is Lipscomb.

Loving
Loving County is a county in the U.S. state of Texas. With a population of 64 according to the 2020 census, it is the least populous county in the United States with a permanent population. Its county seat and only community is Mentone.

Lynn
Lynn County is a county in the U.S. state of Texas. As of the 2020 census, its population was 5,596. Its county seat is Tahoka.

McCulloch
McCulloch County is a county located on the Edwards Plateau in the U.S. state of Texas. At the 2020 census, its population was 7,630. Its county seat is Brady.

Martin
Martin County is a county in the U.S. state of Texas. As of the 2020 census, its population was 5,237. Its county seat is Stanton.

Maverick
Maverick County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 57,887. Its county seat is Eagle Pass.

Menard
Menard County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 1,962. The county seat is Menard.

Milam
Milam County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 24,754. The county seat is Cameron.

Mills
Mills County is located in Texas, United States. It was created on March 15, 1887, from parts of four existing counties in Central Texas—Brown, Comanche, Hamilton, and Lampasas—and named after John T. Mills. The 2020 census reported a population of 4,456.

Moore
Moore County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 21,358. The county seat is Dumas.

Nueces
Nueces County ( new-AY-siss) is located in the southern part of the U.S. state of Texas. As of the 2020 census, the population was 353,178, making it the 16th-most populous county in the state. The county seat is Corpus Christi, which is also the most populous city in the Nueces County, at 317,773 people, as of 2021.

Palo Pinto
Palo Pinto County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 28,409. The county seat is Palo Pinto.

Polk
Polk County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 50,123. Its county seat is Livingston.

Reeves
Reeves County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 14,748, and was estimated to be 11,956 in 2024. Its county seat and most populous city is Pecos.

San Augustine
San Augustine County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 7,918. Its county seat is San Augustine.

Schleicher
Schleicher County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 2,451. Its county seat is Eldorado.

Sherman
Sherman County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 2,782. Its county seat is Stratford.

Tarrant
Tarrant County is a county located in the U.S. state of Texas with a 2020 U.S. census population of 2,110,640, making it the third-most populous county in Texas and the 15th-most populous in the United States. Its county seat is Fort Worth. Tarrant County, one of 26 counties created out of the Peters Colony, was established in 1849 and organized the next year.

Trinity
Trinity County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 13,602. Its county seat is Groveton.

Walker
Walker County is a county located in the east-central section of the U.S. state of Texas. As of the 2020 census, its population was 76,400. Its county seat is Huntsville.

Wharton
Wharton County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 41,570. Its county seat is Wharton.

Wilson
Wilson County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 49,753. Its county seat is Floresville.

Young
Young County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 17,867. Its county seat is Graham.

Andrews
Andrews County is a county in the U.S. state of Texas. It is in West Texas and its county seat is Andrews.
As of the 2020 census, the population was 18,610.

Bandera
Bandera County (Spanish: "flag", ban-DERR-ə) is a county in the U.S. state of Texas. It is located in the Hill Country and its county seat is Bandera. Bandera county was settled by German and Polish emigrants in the mid 1800s.

Bell
Bell County is a county in the U.S. state of Texas. It is in Central Texas and its county seat is Belton. As of the 2020 census, its population was 370,647.

Crosby
Crosby County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,133. The county seat is Crosbyton.

Brazos
Brazos County ( BRAZ-əs) is a county in the U.S. state of Texas. As of the 2020 census, its population was 233,849. The county seat is Bryan.

Callahan
Callahan County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 13,708. Its county seat is Baird.

Childress
Childress County ( CHIL-driss) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 6,664. The county seat is Childress.

Coleman
Coleman County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 7,684. The county seat is Coleman.

Colorado
Colorado County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 20,557. Its county seat is Columbus.

Delta
Delta County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,230. Its county seat and largest city is Cooper.

Duval
Duval County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 9,831. Its county seat is San Diego.

Erath
Erath County () is a county in the U.S. state of Texas. According to the United States Census bureau, its population was 42,545 in 2020. The county seat is Stephenville.

Floyd
Floyd County is a county in the U.S. state of Texas. As of the 2020 census, its population was 5,402. The seat of the county is Floydada.

Frio
Frio County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 18,385. Its county seat is Pearsall.

Gillespie
Gillespie County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 26,725.
Gillespie County comprises the Fredericksburg, TX Micropolitan Statistical Area.

Glasscock
Glasscock County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,169. Its county seat is Garden City.

Goliad
Goliad County ( GOH-lee-ad) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 7,012. Its county seat is Goliad.

Gregg
Gregg County is a county located in the eastern part of the U.S. state of Texas. As of the 2020 census, its population was 124,239. Its county seat is Longview.

Guadalupe
Guadalupe County (Local , Spanish pronunciation: [gwaðaˈlupe]) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 172,706. The county seat is Seguin.

Hartley
Hartley County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,382. The county seat is Channing.

Hays
Hays County is a county in the central portion of the U.S. state of Texas. It is part of the Austin-Round Rock metropolitan area. As of the 2020 census, its official population had reached 241,067.

Hockley
Hockley County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 21,537. Its county seat is Levelland.

Hunt
Hunt County is a county in the U.S. state of Texas. As of the 2020 census, its population was 99,956. Its county seat is Greenville.

Jasper
Jasper County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 32,980. Its county seat is Jasper.

Karnes
Karnes County is a county in the U.S. state of Texas. As of the 2020 census, the population was 14,710. Its county seat is Karnes City.

King
King County is a county located in the U.S. state of Texas. Its population was 265 at the 2020 census, making it the second-least populated county in Texas and the third-least populated county in the United States. King County has no incorporated communities.

Lamb
Lamb County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 13,045. Its county seat is Littlefield.

Leon
Leon County is a county in the U.S. state of Texas. As of the 2020 census, its population was 15,719. Its county seat is Centerville.

Llano
Llano County () is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 21,243. Its county seat is Llano, and the county is named for the Llano River.

Madison
Madison County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 13,455. Its seat is Madisonville.

Medina
Medina County is a county located in the South central part of the U.S. state Texas. As of the 2020 census, its population was 50,748. Its county seat is Hondo.

Mitchell
Mitchell County is a county in the U.S. state of Texas. As of the 2020 census, its population was 8,990. Its county seat is Colorado City.

Morris
Morris County is a county located near the eastern border of the U.S. state of Texas. As of the 2020 census, its population was 11,973. Its county seat is Daingerfield.

Cottle
Cottle County is a county in the U.S. state of Texas. As of the 2020 census, its population was 1,380. Its county seat is Paducah.

Crockett
Crockett County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 3,098. The county seat is Ozona.

Culberson
Culberson County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 2,188. The county seat is Van Horn.

Dallam
Dallam County is the north-westernmost county in the U.S. state of Texas. As of the 2020 Census, its population was 7,115. Its county seat is Dalhart.

Dallas
Dallas County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 2,613,539, and was estimated to be 2,656,028 in 2024, making it the second-most populous county in Texas and the eighth-most populous county in the United States. Its county seat is Dallas, the third-most populous city in Texas and the ninth-most populous city in the United States.

Denton
Denton County is located in the U.S. state of Texas. As of the 2020 census, its population was 906,422, making it the seventh-most populous county in Texas. The county seat is Denton.

Dickens
Dickens County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,770. Its county seat is Dickens.

Eastland
Eastland County is a county located in central West Texas. As of the 2020 census, its population was 17,725. The county seat is Eastland.

Ellis
Ellis County is a county located in the U.S. state of Texas. As of 2020, its population was estimated to be 192,455. The county seat is Waxahachie.

Falls
Falls County is a county in the U.S. state of Texas. As of the 2020 census, its population was 16,968. The county seat is Marlin.

Hamilton
Hamilton County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 8,222. The county seat is Hamilton.

Fannin
Fannin County is a county in the U.S. state of Texas, on the border with Oklahoma. Fannin is located at the western edge of Northeast Texas.
As of the 2020 census, its population was 35,662, making it the 87th-most populous county in Texas.

Fisher
Fisher County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,672. The county seat is Roby.

Fort Bend
Fort Bend County is a county located in the U.S. state of Texas. The county was founded on December 29, 1837, and organized the next year. It is named for a blockhouse at a bend of the Brazos River.

Grayson
Grayson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 135,543. The county seat is Sherman.

Hale
Hale County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 32,522. Its county seat is Plainview.

Motley
Motley County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,063, making it the 10th-least populous county in Texas. Its county seat is Matador.

Nacogdoches
Nacogdoches County ( NAK-ə-DOH-chiss) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 64,653. Its county seat is Nacogdoches.

Newton
Newton County is the easternmost county in the U.S. state of Texas. As of the 2020 census, its population was 12,217. Its county seat is Newton.

Hardeman
Hardeman County ( HAR-di-mən) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,549. The county seat and largest city is Quanah.

Hardin
Hardin County is a county located in the U.S. state of Texas, United States. As of the 2020 census, its population was 56,231. The county seat is Kountze.

Harris
Harris County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 4,731,145, and was estimated to be 5,009,302 in 2024, making it the most populous county in Texas and the third-most populous county in the United States. Its county seat is Houston, the most populous city in Texas and the fourth-most populous city in the United States.

Harrison
Harrison County is a county on the eastern side of U.S. state of Texas bordering with the state of Louisiana. As of the 2020 United States census, its population was 68,839. The county seat is Marshall.

Hemphill
Hemphill County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,382. The county seat and only incorporated community in the county is the city of Canadian.

Henderson
Henderson County is a county in the U.S. state of Texas. As of the 2020 census, its population was 82,150. The county seat is Athens.

Hidalgo
Hidalgo County (; Spanish pronunciation: [iˈðalɣo]) is located in the U.S. state of Texas. As of the 2024 census estimate, its population was 914,820, making it the ninth-most populous county in Texas, and the most populous county outside of the counties in the Texas Triangle. However, based on housing permits and service usage, county officials believe the true population is around 1.2 million, if 'a full and accurate census count is completed.' The county seat is Edinburg and the largest city

Hopkins
Hopkins County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 36,787. Its county seat is Sulphur Springs.

Irion
Irion County ( EYE-ree-ən) is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 1,513. Its county seat is Mertzon.

Jack
Jack County is a county located in the north-central part of the U.S. state of Texas. As of the 2020 census, its population was 8,472. Its county seat is Jacksboro.

Jackson
Jackson County is a county in the U.S. state of Texas. As of the 2020 census its population was 14,988. Its county seat is Edna.

Jeff Davis
Jeff Davis County is a county in the U.S. state of Texas. As of the 2020 census, its population was 1,996. Its county seat is Fort Davis.

Jim Wells
Jim Wells County is a county in the U.S. state of Texas. As of the 2020 census, its population was 38,891. Its county seat is Alice.

Jones
Jones County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 19,663.
Its county seat is Anson.

Kendall
Kendall County is a county located on the Edwards Plateau in the U.S. state of Texas. In the 2020 census, its population was 44,279. Its county seat is Boerne.

Pecos
Pecos County ( PAY-kəs) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 15,193. The county seat is Fort Stockton.

Presidio
Presidio County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 6,131. Its county seat is Marfa.

Refugio
Refugio County ( rih-FURE-ee-oh) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 6,741. Its county seat is Refugio.

Rusk
Rusk County is a county located in Texas. As of the 2020 census, its population was 52,214. Its county seat is Henderson.

San Jacinto
San Jacinto County ( SAN jə-SIN-toh) is a county in the U.S. state of Texas. As of the 2020 census, its population was 27,402. Its county seat is Coldspring.

San Patricio
San Patricio County is located in the U.S. state of Texas near the lower Gulf Coast. As of the 2020 census, its population was 68,755. Its county seat is Sinton.

Terrell
Terrell County is a county in the U.S. state of Texas. As of the 2020 census, its population was 760, making it the seventh-least populous county in Texas, and the 37th-least populous county in the nation. Its county seat is the census-designated place of Sanderson; no incorporated municipalities are in the county.

Upton
Upton County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 3,308. Its county seat is Rankin.

Val Verde
Val Verde County is a county located on the southern Edwards Plateau in the U.S. state of Texas. The 2020 population is 47,586. Its county seat is Del Rio.

Waller
Waller County is a county in the U.S. state of Texas. As of the 2020 census, its population was 56,794. Its county seat is Hempstead.

Webb
Webb County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 267,114. Its county seat and largest city is Laredo.

Wilbarger
Wilbarger County ( WIL-bar-gər) is a county located in the North Texas region of the U.S. state of Texas. As of the 2020 census, the population was 12,887. The county seat is Vernon.

Bowie
Bowie County ( BOO-ee) is a county in the U.S. state of Texas. Its legal county seat is Boston, though its courthouse is located in New Boston. As of the 2020 census, the population was 92,893.

Winkler
Winkler County is a county in the U.S. state of Texas. As of the 2020 census, its population was 7,791. Its county seat is Kermit.

Yoakum
Yoakum County is a county located in the western Panhandle portion of the U.S. state of Texas. As of the 2020 census, its population was 7,694. Its county seat is Plains.

Zapata
Zapata County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 13,889. Its county seat is Zapata.

Angelina
Angelina County ( AN-jə-LEE-nə) is a county located in the U.S. state of Texas. It is in East Texas and its county seat is Lufkin.
As of the 2020 census, the population was 86,395.

Aransas
Aransas County ( ə-RAN-zəss) is a county located in the U.S. state of Texas. It is in South Texas and its county seat is Rockport.
As of the 2020 census, its population was 23,830.

Brewster
Brewster County is a county located in the U.S. state of Texas. It is in West Texas and its county seat (and only city) is Alpine. It is one of the nine counties that comprise the Trans-Pecos region, and borders Mexico.

Burleson
Burleson County ( BUR-liss-ən) is a county located in the U.S. state of Texas. As of the 2020 census, its population was 17,642. Its county seat is Caldwell.

Calhoun
Calhoun County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 20,106. Its county seat is Port Lavaca.

Chambers
Chambers County is a county in the U.S. state of Texas. As of the 2020 census, its population was 46,571. The county seat is Anahuac.

Comanche
Comanche County is a county located on the Edwards Plateau in Central Texas. As of the 2020 census, its population was 13,594. The county seat is Comanche.

Cooke
Cooke County is a county in the U.S. state of Texas. At the 2020 census, its population was 41,668. The county seat is Gainesville.

Kleberg
Kleberg County is a county in the U.S. state of Texas. As of the 2020 census, its population was 31,040. The county seat is Kingsville.

McMullen
McMullen County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 600, making it the fourth-least populous county in Texas. Its county seat is Tilden.

Marion
Marion County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 9,725. Its county seat is Jefferson.

Matagorda
Matagorda County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 36,255. Its county seat is Bay City, not to be confused with the larger Baytown in Harris and Chambers Counties.

Montague
Montague County ( MON-tayg) is a county located in the U.S. state of Texas, established in 1857. As of the 2020 census, its population was 19,965. The county seat is Montague.

Deaf Smith
Deaf Smith County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 18,583. The county seat is Hereford, which is known as the "Beef Capital of the World".

Kenedy
Kenedy County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 350. It is the third-least populous county in Texas and fourth-least populous in the United States.

Ector
Ector County is a county located in the U.S. state of Texas. In the 2020 census, its population was 165,171. Its county seat is Odessa.

El Paso
El Paso County is the westernmost county in the U.S. state of Texas. As of the 2020 census, its population was 865,657, making it the ninth-most populous county in Texas. Its county seat is the city of El Paso, the sixth-most populous city in Texas and the 22nd-most populous city in the United States.

Foard
Foard County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 1,095. Its county seat is Crowell, which is also the county's only incorporated community.

Freestone
Freestone County is a county in the east-central part of the U.S. state of Texas. As of the 2020 census, its population was 19,435. Its county seat is Fairfield.

Gaines
Gaines County is a county in the U.S. state of Texas. As of the 2020 census, its population was 21,598. The county seat is Seminole.

Donley
Donley County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 3,258. Its county seat is Clarendon.

Galveston
Galveston County ( GAL-vis-tən) is a county in the U.S. state of Texas, located along the Gulf Coast adjacent to Galveston Bay. As of the 2020 census, its population was 350,682. The county was founded in 1838.

Hood
Hood County is a county in the U.S. state of Texas. As of the 2020 census, its population was 61,598. Its county seat is Granbury.

Houston
Houston County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 22,066. Its county seat is Crockett.

Hudspeth
Hudspeth County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 3,432. Its county seat is Sierra Blanca, and the largest community is Fort Hancock.

Jefferson
Jefferson County is a county in the Coastal Plain or Gulf Prairie region of Southeast Texas. The Neches River forms its northeastern boundary. The county was named for U.S. president Thomas Jefferson.

Kaufman
Kaufman County is a county in the northeastern area of the U.S. state of Texas. As of the 2020 census, its population was 145,310. Its county seat is Kaufman.

Panola
Panola County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 22,491, with its county seat in Carthage. Located in East Texas and originally developed for cotton plantations, the county's name is derived from a Choctaw word for cotton.

Haskell
Haskell County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 5,416. The county seat is Haskell.

Potter
Potter County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 118,525. Its county seat is Amarillo.