81101 ZIP Code, Alamosa, CO
81101 is a ZIP code in Alamosa, Colorado — mostly in Alamosa County (94% of its land), with smaller parts in Conejos County. It covers 369 square miles of land. The closest ZIP codes are 81146, 81123 and 81144. 15,550 people live here in 6,292 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (55% own). Median household income is $54,844, well below the Colorado median of $95,470.
Quick facts
- Mailing city: Alamosa, CO
- County: Alamosa County
- Land area: 369 sq mi
- Population: 15,550
- Median household income: $54,844
Key figures
| Measure | Value |
|---|---|
| Residents | 15,550 |
| Households | 6,292 |
| Median household income | $54,844 |
| Income per person | $29,490 |
| Median age | 33.4 |
| Homeowners | 54.7% |
| Median home value | $240,400 |
| Median rent | $912 |
| Bachelor's degree or higher | 32.4% |
| Average commute (minutes) | 15.9 |
| Households with kids under 18 | 30.1% |
| Moved in the past year | 19.1% |
| Below the poverty line | 18.1% |
| Broadband internet | 92.0% |
| Speak a non-English language at home | 22.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 6.9% |
| $10–15K | 5.5% |
| $15–25K | 11.9% |
| $25–35K | 7.1% |
| $35–50K | 15.4% |
| $50–75K | 18.9% |
| $75–100K | 11.6% |
| $100–150K | 12.0% |
| $150–200K | 7.0% |
| $200K+ | 3.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 12.7% |
| 10–19 | 16.8% |
| 20–24 | 8.8% |
| 25–34 | 14.4% |
| 35–44 | 13.5% |
| 45–54 | 8.2% |
| 55–64 | 10.7% |
| 65–74 | 8.9% |
| 75+ | 6.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 31.7% |
| Owned outright | 19.8% |
| Rented | 41.0% |
| Vacant | 7.5% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 60.6% |
| Townhome | 3.9% |
| 2–4 units | 11.6% |
| 5–19 units | 10.0% |
| 20+ units | 2.4% |
| Mobile / other | 11.4% |
Businesses in 81101
465 business establishments with 5,760 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 73
- Retail Trade: 70
- Accommodation and Food Services: 53
- Other Services (except Public Administration): 45
- Construction: 41
- Professional, Scientific, and Technical Services: 38
- Finance and Insurance: 26
- Real Estate and Rental and Leasing: 20
EDDM carrier routes
See every USPS carrier route in 81101 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 81146 (15.9 mi)
- 81123 — Blanca town, CO (16.2 mi)
- 81144 — Monte Vista city, CO (16.8 mi)
- 81136 — Hooper town, CO (17.4 mi)
- 81151 — Sanford town, CO (17.7 mi)
- 81124 — Capulin CDP, CO (18.9 mi)
- 81140 — La Jara town, CO (20.6 mi)
- 81141 — Manassa town, CO (21.4 mi)
Areas that include 81101
- Alamosa, CO ZIP codes — 1 ZIP code
- Alamosa East, CO ZIP codes — 1 ZIP code
- Alamosa County ZIP codes — 3 ZIP codes
- Colorado ZIP code data
Mail every home in 81101
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 81101, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 81101 in?
- 81101 is a Alamosa, CO mailing address. By land area, 2% lies inside Alamosa; the rest is outside any Census-defined city or community.
- What county is 81101 in?
- 81101 is mostly in Alamosa County (94% of its land), with smaller parts in Conejos County.
- What is the population of 81101?
- About 15,550 people (±260), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,657.
- What is the median household income in 81101?
- $54,844 (±$5,420), compared with $95,470 for Colorado as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 81101?
- EDDM2GO's stored route library does not include 81101 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 81101?
- The closest, measured center to center: 81146 (15.9 mi), 81123 (16.2 mi, Blanca), 81144 (16.8 mi, Monte Vista), 81136 (17.4 mi, Hooper), 81151 (17.7 mi, Sanford) and 81124 (18.9 mi, Capulin).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.