Larimer County's 2026 population is estimated at 380,662, reflecting a 0.81% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Larimer County is the 8th largest county in Colorado. The 2010 population was 300,453 and has grown 26.7% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.8 years
Female: 37.8 years
Male: 36.1 years
There are 300,029 adults, (63,764 of whom are seniors) in Larimer County.
Female: 183,849 (50%)
Male: 183,519 (50%)
The racial composition of Larimer County includes 82.42% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 302,769 | 82.42% |
| Two or more races | 40,134 | 10.92% |
| Other race | 10,013 | 2.73% |
| Asian | 8,205 | 2.23% |
| Black or African American | 3,962 | 1.08% |
| Native American | 1,914 | 0.52% |
| Native Hawaiian or Pacific Islander | 371 | 0.1% |
Larimer County 's average per capita income is $60,844. Household income levels show a median of $93,765. The poverty rate stands at 11.2%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $136,436 | $168,067 |
| Families | $122,331 | $152,805 |
| Households | $93,765 | $122,424 |
| Non Families | $54,126 | $73,396 |
Average Income
Median Household Income
Poverty Rate