
Wyandotte County
- State:
- Kansas
- County Seat:
- Kansas City
Wyandotte County's estimated 2025 population is 164,591 with a growth rate of -0.21% in the past year according to the most recent United States census data. Wyandotte County is the 4th largest county in Kansas. The 2010 population was 157,636 and has seen a growth of 4.41% since that time.