PlainZIP

Alamosa, CO · standard

ZIP Code 81101

Alamosa County, Colorado - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

14,675
14/sq mi
$54,844
Median income
$240,400
Median home value
32.4%
Bachelor's or higher

The verdict

Alamosa pairs one of the lowest household incomes in the country with above-median home values, in a rural, mixed-tenure area.

21th pct
household income, US ZIPs
Top 45%
home value, US ZIPs
14
people per sq mi
55%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 81101 against every reporting US ZIP.

ZIP code 81101 is classified by USPS as a standard delivery area and covers roughly 1063.4 square miles in Alamosa, Alamosa County, Colorado. The area is home to 14,675 residents, producing a population density of 14 people per square mile, and falls within the Denver time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 81101 against Colorado and the nation.

On the economic side, the median household income for ZIP 81101 sits at $54,844 (38% below the Colorado average), while per-capita income is $29,490. The poverty rate stands at 18.1% and the unemployment rate at 3.6%. On housing, the median home value is $240,400 (50% below the state average) with median rent at $912 per month, and 54.7% of occupied units are owner-occupied, a direct signal of whether 81101 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 32.4% of adults hold a bachelor's degree or higher, the median age is 33.4, and the average commute is 16 minutes. Use the benchmarks above to see where 81101 sits relative to Colorado and the national baseline rather than viewing the numbers in isolation. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 81101

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 81101.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 81101, Alamosa, CO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

14,675

Population

1063.4

Area (sq mi)

14

People / sq mi

Denver

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 81101?

33.4

Median Age

49.4%

Male

50.6%

Female

5.3%

Foreign-Born

White 56.3%
African American 2.0%
Asian 1.2%
American Indian or Alaska Native 4.4%
Native Hawaiian or Pacific Islander 0.1%
Two or More Ethnicities 26.8%
Hispanic or Latino 50.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$54,844

Median Household Income

-38% vs state

$29,490

Per Capita Income

18.1%

Poverty Rate

3.6%

Unemployment Rate

15.9 min

Mean Commute Time

How ZIP 81101 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$54,844 21st percentile higher than 21% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 56.8%
Bachelor's Degree or Higher 32.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

6,812

Total Housing Units

6,292

Occupied Units

520

Vacant Units

2.32

Avg Household Size

Occupancy Type

Owner 54.7%
Renter 45.3%

$240,400

Median Home Value

-50% vs state

$912

Median Rent

1982

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-5.4%

YoY Change (2024)

259

HPI Index (2000 = 100)

+159%

Total Change Since 2000

Home values in ZIP 81101 have decreased 5.4% over the past year (2024). Since 2000, this ZIP has seen +159% cumulative appreciation.

Year Annual Change HPI Index
2020 +1.8% 175
2021 +13.0% 198
2022 +19.0% 236
2023 +16.2% 274
2024 -5.4% 259

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 465 business establishments in ZIP 81101, employing approximately 5,760 people with a combined annual payroll of $272,213,000.

465

Businesses

5,760

Employees

$272.2M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 73 15.7%
Retail trade 70 15.1%
Accommodation and food services 53 11.4%
Other services (except public administration) 45 9.7%
Construction 41 8.8%
Professional, scientific, and technical services 38 8.2%
Finance and insurance 26 5.6%
Real estate and rental and leasing 20 4.3%
Wholesale trade 17 3.7%
Administrative and support and waste management and remediation services 17 3.7%
Manufacturing 16 3.4%
Transportation and warehousing 16 3.4%
Information 13 2.8%
Arts, entertainment, and recreation 8 1.7%
Educational services 6 1.3%
Utilities 3 0.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

More ZIP Codes in Alamosa County

81146 standard
Mosca, CO
Pop: 531
81136 standard
Hooper, CO
Pop: 261

Related Areas

Alamosa County Alamosa, CO Colorado

Frequently Asked Questions

What county is ZIP code 81101 in? ▼
ZIP code 81101 (Alamosa) is located in Alamosa County, Colorado. Alamosa County contains multiple ZIP codes, see the full list at /counties/alamosa-co.
What is the population of ZIP code 81101? ▼
ZIP code 81101 in Alamosa, CO has a population of 14,675 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 81101? ▼
The median household income in ZIP 81101 is $54,844, which is 28% below the national average of $76,288.
What is the average home value in ZIP 81101? ▼
The median home value in ZIP 81101 is $240,400, which is 14% below the national average of $278,155.
What is the demographic makeup of ZIP 81101? ▼
The largest racial group in ZIP 81101 is White at 56.3%. Hispanic or Latino residents make up 50.3% of the population.
How many businesses are in ZIP code 81101? ▼
ZIP code 81101 has 465 business establishments employing approximately 5,760 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 81101? ▼
The top industries by establishment count in ZIP 81101 are: Health care and social assistance (73), Retail trade (70), Accommodation and food services (53). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 81101? ▼
According to the FHFA House Price Index, home values in ZIP 81101 decreased by 5.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 159%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 81101? ▼
In ZIP code 81101, 56.8% of residents aged 25+ have a high school diploma or higher, and 32.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 81101? ▼
The mean commute time for workers in ZIP code 81101 is 15.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 81101? ▼
In ZIP code 81101, approximately 54.7% of occupied housing units are owner-occupied and 45.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 81101? ▼
The poverty rate in ZIP code 81101 is 18.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Reading Census Demographics
How to interpret population, income, and education data from the Census Bureau.
Understanding ZIP Code Data
What ZIP codes are, how ZCTAs differ, and what the data reveals.
Best ZIP Codes for Families
Key factors to evaluate when choosing a family-friendly neighborhood.
ZIP Codes for Relocation
Data-driven tips for evaluating ZIP codes before a move.

Official Data Resources for Alamosa, CO

Verify and explore additional data for this area using these official government sources.

U.S. Census Bureau
Official demographic, economic, and housing data from the American Community Survey.
HUD Fair Market Rents
Department of Housing and Urban Development rental cost estimates by metropolitan area.
FBI Uniform Crime Reports
Official crime statistics compiled from law enforcement agencies nationwide.
FHFA House Price Index
Federal Housing Finance Agency home value trends based on repeat sales and appraisals.

Read our methodology to see how this data is sourced, computed, and verified.