
Alachua County
- State:
- Florida
- County Seat:
- Gainesville
Alachua County's estimated 2025 population is 289,900 with a growth rate of 0.68% in the past year according to the most recent United States census data. Alachua County is the 24th largest county in Florida. The 2010 population was 247,624 and has seen a growth of 17.07% since that time.