US > Colorado > Alamosa County > Alamosa, CO 81101

81101 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Alamosa, CO | Estrella, CO | Henry, CO | Waverly, CO
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ZIP Code 81101: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Alamosa, CO 81101

Acceptable Alternative
Great Sand Dunes National Mo, CO 81101
Sand Dunes Mo, CO 81101

Not Acceptable, USPS
Carmel, CO 81101
East Alamosa, CO 81101
Estrella, CO 81101
Henry, CO 81101
Stanley, CO 81101
Washington, CO 81101
Waverly, CO 81101

  • ZIP Code Type: STANDARD
  • County: Alamosa County
  • Centroid: Latitude 37.473, Longitude -105.867
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes

ZIP Code 81101 has segments in 2 Counties (Alamosa, Conejos).

  • Businesses Addresses: 899
  • PO Box Addresses: 750
  • Residential Addresses: 6,645
    • Multi-Family Addresses: 73
    • Single Family Addresses: 6,572

The ZIP Code maps and database are updated 4 times per year.
Database updated: April 1, 2025, Maps updated: May 1, 2024.

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Alamosa, CO 81101 Data & Demographics (As of July 1, 2024)

POPULATION

Total Population 15,587 (100%)
Population in Households 14,796 (94.9%)
Population in Families 11,241 (72.1%)
Population in Group Quarters1 791 ( 5.1%)
Population Density 45
Diversity Index2 80
 
 

INCOME

Median Household Income $50,223
Average Household Income $74,196
% of Income for Mortgage4 31%
Per Capita Income $29,559
Wealth Index5 56
Socioeconomic Status Index6 Moderate (47.0)
 

HOUSING

Total HU (Housing Units) 6,847 (100%)
Owner Occupied HU 3,427 (50.1%)
Renter Occupied HU 2,775 (40.5%)
Vacant Housing Units 645 ( 9.4%)
Median Home Value $250,414
Average Home Value $325,678
Housing Affordability Index3 83
 

HOUSEHOLDS

Total Households 6,202
Average Household Size 2.39
Family Households 3,627
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2024 2024-2029
Population 0.32% 0.27%
Households 0.79% 0.76%
Families   0.48%
Median Household Income   2.18%
Per Capita Income   3.34%
Owner Occupied HU   1.96%

Alamosa, CO 81101 - Peer Comparisons by Rank and Percentile

The table below compares 81101 to the other 527 ZIP Codes in Colorado by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 148 72nd
Population Density # 245 54th
Median Household Income # 471 11th
Housing Affordability Index # 386 73rd
Per Capita Income # 449 15th
Diversity Index # 39 93rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Colorado Census Data Comparison Tool.


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