Alamosa, CO ZIP codes

1 ZIP/ZCTA intersecting this Census place in Alamosa County.

ACS 2023 population

9,847

Median household income

$46,969

Median home value

$200,200

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Alamosa (GEOID 0801090). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 15,454 (1 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Alamosa, CO

Census place boundary and intersecting ZIP Code Tabulation Areas for Alamosa, CO — Census place boundary for Alamosa, CO. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Alamosa

Population overlap

Share of each ZIP/ZCTA’s population located within Alamosa, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

8110162.6%
USPS primary city

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Alamosa

ZIP	City	County	Population	Income
81101	Alamosa	Alamosa County	15,454	$50,020

USPS associates these ZIPs with Alamosa

These codes list Alamosa as a primary or acceptable city. They are not used for the ACS headline.

ZIP	City	County	Population	Income
81102	Alamosa	Alamosa County	29	—