
Smith County
- State:
- Kansas
- County Seat:
- Smith Center
Smith County's estimated 2025 population is 3,626 with a growth rate of 0.5% in the past year according to the most recent United States census data. Smith County is the 76th largest county in Kansas. The 2010 population was 3,860 and has seen a growth of -6.06% since that time.