CITY · LA

What county is Lafayette, LA in?

Lafayette, LA is mostly in Lafayette Parish. County FIPS code 22055, population 249,750 (2023 estimate).

County details

City: Lafayette, Louisiana
Primary county: Lafayette Parish
FIPS code: 22055
County population: 249,750

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

Questions

What county is Lafayette in?

Lafayette, LA is mostly in Lafayette Parish.

What is the county seat of Lafayette Parish?

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.