CITY · AL

What county is Huntsville, AL in?

Huntsville, AL is mostly in Madison County. County FIPS code 01089, population 412,600 (2023 estimate).

County details

City: Huntsville, Alabama
Primary county: Madison County
FIPS code: 01089
County population: 412,600

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

Questions

What county is Huntsville in?

Huntsville, AL is mostly in Madison County.

What is the county seat of Madison 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.