CITY · TX

What county is Brownsville, TX in?

Brownsville, TX is mostly in Cameron County. County FIPS code 48061, population 426,710 (2023 estimate).

County details

City: Brownsville, Texas
Primary county: Cameron County
FIPS code: 48061
County population: 426,710

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

Questions

What county is Brownsville in?

Brownsville, TX is mostly in Cameron County.

What is the county seat of Cameron 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.