Alamosa County's estimated 2025 population is 16,791 with a growth rate of 0.41% in the past year according to the most recent United States census data. Alamosa County is the 30th largest county in Colorado. The 2010 population was 15,515 and has seen a growth of 8.22% since that time.
Data after 2023 is projected based on recent change
The racial composition of Alamosa County includes 61.62% White, 8.01% other race, 4.34% Native American, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White
Two or more races
Other race
Native American
Black or African American
Asian
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 10,176 | 61.62% |
| Two or more races | 3,851 | 23.32% |
| Other race | 1,323 | 8.01% |
| Native American | 717 | 4.34% |
| Black or African American | 304 | 1.84% |
| Asian | 84 | 0.51% |
| Native Hawaiian or Pacific Islander | 60 | 0.36% |
Married
Widowed
Divorced
Separated
Never Married
Alamosa County's average per capita income is $37,261. Household income levels show a median of $51,445. The poverty rate stands at 18.23%.
Name | Median | Mean |
|---|---|---|
| Married Families | $76,500 | - |
| Families | $62,874 | $88,764 |
| Households | $51,445 | $73,926 |
| Non Families | $27,410 | $48,247 |
Average Income
Median Household Income
Poverty Rate
