Alamosa County's estimated 2026 population is 16,685 with a growth rate of -0.02% in the past year according to the most recent United States census data. Alamosa County is the 31st largest county in Colorado. The 2010 population was 15,515 and has seen a growth of 7.54% since that time.
Data after 2023 is projected based on recent change
Overall: 33.2 years
Female: 34.2 years
Male: 31.5 years
There are 12,642 adults, (2,507 of whom are seniors) in Alamosa County.
Female: 8,303 (50.1%)
Male: 8,278 (49.9%)
The racial composition of Alamosa County includes 57.81% White, 9% other race, 4.11% Native American, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,586 | 57.81% |
| Two or more races | 4,312 | 26.01% |
| Other race | 1,492 | 9% |
| Native American | 681 | 4.11% |
| Black or African American | 309 | 1.86% |
| Asian | 188 | 1.13% |
| Native Hawaiian or Pacific Islander | 13 | 0.08% |
Alamosa County's average per capita income is $39,949. Household income levels show a median of $55,397. The poverty rate stands at 17.22%.
Name | Median | Mean |
|---|---|---|
| Married Families | $81,208 | - |
| Families | $66,011 | $88,853 |
| Households | $55,397 | $73,625 |
| Non Families | $30,893 | $47,033 |
Average Income
Median Household Income
Poverty Rate
