City of Dallas only. "Vacant" on the appraisal roll means nothing is built on the land, not that anything could be. This takes out what the water rules out, and shows what is left.
That is about 8% of the city. Taking the water out costs 59% of the acreage but only 16% of the parcels — a few enormous riverside tracts carry most of the land.
What is left is mostly house-sized. Two-thirds of it is under a quarter of an acre:
61% of it sits south of I-30 — 14,980 parcels on 15,425 acres, which is 76% of the city's vacant acreage. Before the floodplain is taken out the figure is 62.8%, matching the "almost two-thirds" the Dallas Morning News reported. The white line is I-30 itself.
9.4% is publicly owned by parcel — but 25% by acreage. Public bodies hold the big pieces.
Nearly half — 48.7% — are classed commercial or industrial vacant, not residential. Zoning is shown in the popup rather than filtered out, because a Planned Development number says nothing without its ordinance.
The county has just as much vacant land outside the city — 24,878 parcels on 33,875 acres, and a different kind of land. See the rest of the county →
DCAD 2026 certified roll joined to Dallas County parcel geometry, intersected with the FEMA National Flood Hazard Layer. Acreage is measured from the geometry, not the roll's AREA_SIZE column, which repeats shared tracts across accounts. Planned Development numbers come from the City of Dallas zoning layer, because the appraisal roll does not record them. Nothing here says a parcel is for sale, serviced, or free of deed restriction. · geopen.io