ZIP code 81101: Alamosa, CO
81101 is a ZIP code in Alamosa, Colorado, mainly in Alamosa County, part of the Alamosa, CO micro area. About 15,550 people live here.
- Population
- 15,550
- Median household income
- $54,844
- Typical home value
- $313,700+2.5% in 12 months
- Median rent
- $912gross, per month
- Median age
- 33.4
- Homeowners
- 54.7%of occupied homes
Shaded: ZIP code 81101's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 81101 details
| City | Alamosa |
|---|---|
| State | Colorado |
| County | Alamosa County (also partly Conejos County) |
| Metro area | Alamosa, CO |
| Time zone | Mountain Time (UTC−7), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 369 sq mi, plus 0.5 sq mi of water |
| Population density | 42 people per sq mi |
| Bachelor's degree or higher | 32.4% of adults 25+ |
| Average commute | 15.9 minutes |
| Center coordinates | 37.46931, -105.85273 |
Median rent in 81101 by bedrooms
| Size | Median gross rent |
|---|---|
| Studio | $529/mo |
| 1 bedroom | $720/mo |
| 2 bedrooms | $874/mo |
| 3 bedrooms | $1,244/mo |
| 4 bedrooms | $1,619/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 81101
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 81102 | Alamosa, CO | 1.7 mi | — |
| 81135 | Homelake, CO | 15.3 mi | — |
| 81146 | Mosca, CO | 15.9 mi | 637 |
| 81123 | Blanca, CO | 16.2 mi | 606 |
| 81144 | Monte Vista, CO | 16.8 mi | 6,543 |
| 81136 | Hooper, CO | 17.4 mi | 305 |
| 81151 | Sanford, CO | 17.7 mi | 1,716 |
| 81124 | Capulin, CO | 18.9 mi | 259 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 81101?
A typical home in ZIP code 81101 is worth about $313,700 (Zillow Home Value Index). The median household here earns $54,844 a year. See what buying here would cost per month, with Colorado average taxes and insurance filled in.
Monthly payment for a $313,700 homeWhat can a $54,844 income afford?Rental property numbers
About ZIP code 81101
What city is ZIP code 81101?
ZIP code 81101 is in Alamosa, CO, in Alamosa County.
What county is ZIP code 81101 in?
81101 is mainly in Alamosa County, Colorado, and partly in Conejos County.
What is the population of ZIP code 81101?
About 15,550 people live in ZIP code 81101, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 81101 in?
81101 is in Mountain Time (UTC−7). It observes daylight saving time.
What other ZIP codes does Alamosa have?
Alamosa, CO also uses 81102.