County · GEOID 08003
Alamosa County, CO ZIP codes
5 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Alamosa County (GEOID 08003). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 26,754 (5 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
ZIP/ZCTA overlap with Alamosa County
Population overlap
Share of each ZIP/ZCTA’s population located within Alamosa County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Alamosa County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 81101 | Alamosa | Alamosa County | 15,454 | $50,020 |
| 81125 | Center | Saguache County | 3,526 | $51,667 |
| 81136 | Hooper | Alamosa County | 318 | $53,482 |
| 81144 | Monte Vista | Rio Grande County | 6,677 | $61,554 |
| 81146 | Mosca | Alamosa County | 779 | $69,138 |
USPS associates these ZIPs with Alamosa County
These codes list Alamosa County as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 81102 | Alamosa | Alamosa County | 29 | — |