Alamosa, Colorado

Alamosa population, 2020 to 2024

Alamosa added 94 residents from July 2020 to July 2024, a change of +1.0%. In the latest year it moved by +19. Among 79 Colorado places of 5,000 or more, that growth ranks 47th; the median place changed by +3.0%. The median place of 5,000+ in Colorado has 14,061 people, so Alamosa is 70% of it.

Alamosa covers 7.97 square miles of land and 0.07 of water, for 1,243 people per square mile of land. The median Colorado place of 5,000+ has 1,848, so Alamosa is less dense than the typical town.

What county Alamosa is in

All of Alamosa's residents live in Alamosa County, which had 16,689 residents in 2024. Alamosa holds 59.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Alamosa

1 ZIP Code Tabulation Area (ZCTA) overlaps Alamosa by at least 10% of the ZCTA's or the city's land: 81101. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Alamosa is

The Census internal point of Alamosa is at 37.474500, -105.877000. Denver, the capital, is 163.7 miles NNE in a straight line. The nearest larger place is Cañon City, CO (17,193 people), 75.8 miles away. The nearest city of 100,000 or more is Pueblo, CO, 88.2 miles away.

Daylight in Alamosa

At 37.47° N, Alamosa gets about 14 h 45 min of daylight around the June solstice and 9 h 35 min around the December solstice, a swing of 5 h 11 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Alamosa

The eight nearest incorporated places of 1,000+ in Colorado, measured between internal points. The closest is Monte Vista, 16.6 miles away, with 4,030 people.