Larimer County Flag

Larimer County

State:
Colorado
County Seat:
Fort Collins

Larimer County's estimated 2025 population is 377,159 with a growth rate of 0.85% in the past year according to the most recent United States census data. Larimer County is the 8th largest county in Colorado. The 2010 population was 300,453 and has seen a growth of 25.53% since that time.

377,159
Total Population
145
Population Density (mi²)
8
Population Rank (State)
3.2K 0.85%
Annual Population Growth

Larimer County Population

Demographics

Economics and Income Statistics