CITY · SD

What county is Sioux Falls, SD in?

Sioux Falls, SD is mostly in Minnehaha County. County FIPS code 46099, population 206,930 (2023 estimate).

County details

City: Sioux Falls, South Dakota
Primary county: Minnehaha County
FIPS code: 46099
County population: 206,930

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

Questions

What county is Sioux Falls in?

Sioux Falls, SD is mostly in Minnehaha County.

What is the county seat of Minnehaha 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.