Alamosa Flag

Alamosa

County:
Alamosa County
County Seat:
Yes
Area (mi²):
7.965
State:
Colorado

Alamosa is a city located in Alamosa County, Colorado. Alamosa has a 2025 population of 9,929 . It is also the county seat of Alamosa County . Alamosa is currently growing at a rate of 0.23% annually and its population has increased by 1.19% since the most recent census, which recorded a population of 9,812 in 2020.

The average household income in Alamosa is $65,321 with a poverty rate of 17.81%. The median age in Alamosa is 29.4 years: 29.6 years for males, and 29 years for females. For every 100 females there are 95.9 males.

9.9K
Total Population
1,247
Density (mi²)
23 0.23%
Growth

Alamosa Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)