COUNTY · KS
Sumner County, Kansas
Sumner County is a county in Kansas with FIPS code 20191 and an estimated population of 22,334 (Census 2023), 25th largest of 105 in the state.
County facts
- Name
- Sumner County
- State
- Kansas
- Type
- county
- FIPS code
- 20191
- State FIPS
- 20
- Population (2023)
- 22,334
- Change since 2020
- +0.0%
- State rank
- 25 of 105
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Sumner County?
Sumner County, Kansas has the five-digit FIPS code 20191: 20 for the state and 191 for the county.
What state is Sumner County in?
Sumner 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.