CITY · TX

What county is Houston, TX in?

Houston, TX is mostly in Harris County. County FIPS code 48201, population 4,835,125 (2023 estimate).

County details

City: Houston, Texas
Primary county: Harris County
FIPS code: 48201
County population: 4,835,125

Some cities extend into more than one county. Houston is placed in the county that contains its center. For a specific address, use the address lookup.

Questions

What county is Houston in?

Houston, TX is mostly in Harris County.

What is the county seat of Harris County?

County seats are not part of the data on this site. Check the county’s official website.

Can a city be in two counties?

Yes. Large cities such as Houston and Atlanta cross county lines. The address lookup shows the exact county for any street address.

Sources: U.S. Census Bureau geographic reference files; FCC Area API; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.