CITY · KS

What county is Topeka, KS in?

Topeka, KS is mostly in Shawnee County. County FIPS code 20177, population 177,746 (2023 estimate).

County details

City: Topeka, Kansas
Primary county: Shawnee County
FIPS code: 20177
County population: 177,746

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

Questions

What county is Topeka in?

Topeka, KS is mostly in Shawnee County.

What is the county seat of Shawnee 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.