Alamosa County, CO ZIP Codes
3 ZIP codes cover all or part of Alamosa County, Colorado: 81101, 81146 and 81136. The Census Bureau counts 16,581 residents in the county, with a median household income of $55,397 and a median home value of $239,100. Its largest communities include Alamosa, Alamosa East and Hooper.
Alamosa County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 16,581 |
| Households | 6,648 |
| Median household income | $55,397 |
| Median home value | $239,100 |
| Median age | 33.2 |
| Median rent | $907 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 16,492 |
| Households (sum of ZIP codes) | 6,634 |
| Median household income, range across ZIP codes | $54,844 (81101) to $54,844 (81101) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $54,844 |
| Homeowners | 55.8% |
| Households with kids under 18 | 29.9% |
| Moved in the past year | 18.3% |
| Carrier routes in EDDM2GO's route library | 2 routes, 330 homes (2 of 3 ZIP codes) |
Every ZIP code in Alamosa County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 81101 | Alamosa | 15,550 | 6,292 | $54,844 | $240,400 | 54.7% | 30.1% | 19.1% | — | — | 94% of its land |
| 81146 | Mosca | 637 | 235 | $69,556 | $232,100 | 81.7% | 25.1% | 1.7% | 1 | 296 | 100% of its land |
| 81136 | Hooper | 305 | 107 | $47,448 | $193,300 | 65.4% | 30.8% | 13.4% | 1 | 50 | 80% of its land |
A ZIP code is listed for Alamosa County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Alamosa — 9,879 residents · 1 ZIP code
- Alamosa East — 1,298 residents · 1 ZIP code
- Hooper — 152 residents · 1 ZIP code
Price a mailing to Alamosa County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Alamosa County, CO?
- 81101, 81146 and 81136. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Alamosa County?
- 16,581 residents in 6,648 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Alamosa County?
- $55,397 for the county as a whole. Its ZIP codes range from $54,844 (81101) to $54,844 (81101).
- How many carrier routes and mailboxes are in Alamosa County?
- For the 2 of 3 ZIP codes in EDDM2GO's stored route library: 2 carrier routes reaching 330 residential and 16 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.