TerraIQs scores parcels in every Texas county. Each county page below shows that county's real numbers — population change since 2010, how much FEMA flood mapping exists, recorded contamination sites, land area and scored parcel density — plus what a parcel report covers there.
Fastest-growing counties
Population change 2010 to 2022, from census tract data aggregated to the county. Fast growth is where zoning, ETJ boundaries and utility extensions move quickest — and where listings go stale soonest.
- Loving County — +134.1% population since 2010
- Hays County — +67.5% population since 2010
- Comal County — +60.6% population since 2010
- Williamson County — +57.6% population since 2010
- Fort Bend County — +53.6% population since 2010
- Kaufman County — +52.2% population since 2010
- Rockwall County — +50.9% population since 2010
- Montgomery County — +47.3% population since 2010
- Collin County — +46.1% population since 2010
- Denton County — +45.7% population since 2010
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All 254 counties
Population: U.S. Census Bureau ACS 5-year tract estimates (2010, 2022), aggregated to county. Flood: FEMA National Flood Hazard Layer. Contamination: EPA Superfund and state brownfields. Stats generated 2026-10-07.