
Lafayette County
- State:
- Wisconsin
- County Seat:
- Darlington
Lafayette County's estimated 2025 population is 17,023 with a growth rate of 0.23% in the past year according to the most recent United States census data. Lafayette County is the 60th largest county in Wisconsin. The 2010 population was 16,799 and has seen a growth of 1.33% since that time.