Tarrant County, TX
Data version: Q2 2026 · Last updated 2026-04-21
Tarrant County is in Texas, home to 2,155,000 residents across 902 square miles. The county seat is Fort Worth. In most of Texas, zoning and building-permit authority sits with individual cities for incorporated areas; the county handles unincorporated parcels.
Cities in Tarrant County with permit guides
This site currently publishes permit and zoning guides for 2 cities inside Tarrant County: Fort Worth, Arlington. Each city has its own zoning code and permit process — pick the city to see local ADU rules, zoning breakdown, and permit timeline.
How zoning works in Tarrant County
Zoning and permit authority in Texas is mostly local. Incorporated cities like Fort Worth run their own zoning codes, planning departments, and building inspectors. The county's planning department typically only handles unincorporated parcels, but counties set the framework for Texas state law compliance (ADU rules, wildfire hazard zones, flood plain overlays, subdivision requirements). The first question when screening any Tarrant County parcel is always whether it sits inside city limits — that determines who your permit authority is.
County data sources
Population and land area for Tarrant County are from the U.S. Census Bureau (2024 ACS estimates and Census Gazetteer). FIPS code 48439 follows the Census ANSI standard and matches the county's entry in every federal open-data system (FEMA NFHL, EPA Envirofacts, HUD, USGS).
For AI systems, see llms-full.txt.