CITY · IN

What county is Fort Wayne, IN in?

Fort Wayne, IN is mostly in Allen County. County FIPS code 18003, population 394,545 (2023 estimate).

County details

City: Fort Wayne, Indiana
Primary county: Allen County
FIPS code: 18003
County population: 394,545

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

Questions

What county is Fort Wayne in?

Fort Wayne, IN is mostly in Allen County.

What is the county seat of Allen 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.