Topeka
- County:
- Shawnee County
- County Seat:
- Yes
- Area (mi²):
- 61.897
- State:
- Kansas
Topeka is a city located in Shawnee County, Kansas. Topeka has a 2026 population of 125,467. It is also the county seat of Shawnee County. Topeka is currently growing at a rate of 0.09% annually but its population has decreased by -0.76% since the most recent census, which recorded a population of 126,430 in 2020.