
Lake County
- State:
- Ohio
- County Seat:
- Painesville
Lake County's estimated 2025 population is 231,448 with a growth rate of -0.04% in the past year according to the most recent United States census data. Lake County is the 12th largest county in Ohio. The 2010 population was 230,010 and has seen a growth of 0.63% since that time.