COUNTY · KS
Sedgwick County, Kansas
Sedgwick County is a county in Kansas with FIPS code 20173 and an estimated population of 528,469 (Census 2023), 2nd largest of 105 in the state.
County facts
- Name
- Sedgwick County
- State
- Kansas
- Type
- county
- FIPS code
- 20173
- State FIPS
- 20
- Population (2023)
- 528,469
- Change since 2020
- +0.7%
- State rank
- 2 of 105
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Sedgwick County
Other counties in Kansas
Questions
What is the FIPS code for Sedgwick County?
Sedgwick County, Kansas has the five-digit FIPS code 20173: 20 for the state and 173 for the county.
What state is Sedgwick County in?
Sedgwick County is in Kansas.
How do I know if an address is in this county?
Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.
Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.