
Mesa County
- State:
- Colorado
- County Seat:
- Grand Junction
Mesa County's estimated 2025 population is 161,981 with a growth rate of 0.72% in the past year according to the most recent United States census data. Mesa County is the 11th largest county in Colorado. The 2010 population was 146,266 and has seen a growth of 10.74% since that time.