COUNTY · KS
Wyandotte County, Kansas
Wyandotte County is a county in Kansas with FIPS code 20209 and an estimated population of 165,281 (Census 2023), 4th largest of 105 in the state.
County facts
- Name
- Wyandotte County
- State
- Kansas
- Type
- county
- FIPS code
- 20209
- State FIPS
- 20
- Population (2023)
- 165,281
- Change since 2020
- -2.2%
- State rank
- 4 of 105
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Wyandotte County
Other counties in Kansas
Questions
What is the FIPS code for Wyandotte County?
Wyandotte County, Kansas has the five-digit FIPS code 20209: 20 for the state and 209 for the county.
What state is Wyandotte County in?
Wyandotte 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.