Alamosa, CO 81101 ZIP Code Profile

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
  • Businesses Addresses: 870
  • Single Family Addresses: 5,939
  • Multi-Family Addresses: 160
  • 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).

Neighborhood Data

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81101 ZIP Code Map

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Alamosa, CO 81101 Data & Demographics (As of July 1, 2016)


Total Population 15,791
Population in Households 14,636
Population in Familes 11,481
Population in Group Qrtrs 1,155
Population Density1 47
Diversity Index2 74


Total Households 5,888
Average Household Size 2.49
Family Households 3,688
Average Family Size 3


Total Housing Units 6,465 (100%)
Owner Occupied HU 3,340 (51.7%)
Renter Occupied HU 2,548 (39.4%)
Vacant Housing Units 577 ( 8.9%)
Median Home Value $143,867
Average Home Value $173,802


Median Household Income $37,113
Average Household Income $49,700
Per Capita Income $19,589
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.34% 0.67%
Households 0.76% 0.59%
Families 0.73% 0.58%
Median Household Income   2.33%
Per Capita Income   1.56%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Alamosa, CO 81101 - Peer Comparisons by Rank and Percentile

The table below compares 81101 to the other 504 ZIP Codes in Colorado by rank and percentile using July 1, 2016 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 # 136 73rd
Population Density1 # 219 57th
Diversity Index2 # 32 93rd
Median Household Income # 448 11th
Per Capita Income # 457 10th

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

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