What is the population of Alamosa city?

Alamosa city has 9,847 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #71 of 482 in Colorado.

What is the median household income in Alamosa city?

Median household income in Alamosa city is $46,969 a year, 40.2% below the national figure of $78,538.

How much does it cost to rent or buy in Alamosa city?

Median gross rent is $881 a month and the median home value is $200,200, so rent absorbs about 22.5% of median household income.

Is Alamosa city affordable compared with the rest of the US?

Homes cost about 4.3× the local median income here versus roughly 3.9× nationally, so Alamosa city is less affordable to buy in than the typical US market, and rent takes 22.5% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Colorado · Census place 01090

Alamosa, CO population, income and ZIP codes

Quick answer

The population of the city of Alamosa, Colorado (Alamosa, CO — Census place “Alamosa city”) is 9,847 residents, ranking #71 of 482 places in Colorado. Median household income is $46,969, the median home is worth $200,200 and median gross rent runs $881 a month. Looking for the Alamosa Colorado ZIP code list? 1 ZIP codes serve Alamosa, CO: 81101.

Population: 9,847Alamosa city residents
Median household income: $46,969Past 12 months, inflation adjusted
Median home value: $200,200Owner-occupied units
Median gross rent: $881Rent plus utilities, monthly
Median age: 29.4 yrsAll residents
Homeownership rate: 43.8%Owner-occupied households

Alamosa ZIP codes (Colorado)

Census ZCTAs whose delivery area overlaps Alamosa.

The Alamosa CO ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

81101

What the numbers mean in Alamosa city

Housing cost measured against local earnings.

A household earning the Alamosa city median would spend about 22.5% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 4.3× the median household income; nationally that ratio sits near 4.5×. Poverty affects 17.8% of residents and 43.8% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Alamosa city, CO in context

How this area compares with national benchmarks.

Alamosa city is a mid-size town in Colorado, with 9,847 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #71 of 482 ranked by population — larger than 85% of them. The median age here is 29.4 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Alamosa city earn a median of $46,969 a year, 40.2% below the national figure of $78,538 and 46% below the $86,484 median for the 223 Colorado cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 17.8% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Alamosa city is valued at $200,200, 34% below the national figure and 56% below the $453,600 peer median, while median gross rent runs $881 a month, 37.3% below the national figure, or roughly $10,572 across a full year. A household on the local median income would put about 22.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 43.8% of occupied homes are owner-occupied versus 65% nationally, a renter-majority market, so rent figures matter more here than the home-value line. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

A median age of 29.4 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Colorado.

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Frequently asked questions

Common questions about this area.

What is the population of Alamosa city?: Alamosa city has 9,847 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #71 of 482 in Colorado.
What is the median household income in Alamosa city?: Median household income in Alamosa city is $46,969 a year, 40.2% below the national figure of $78,538.
How much does it cost to rent or buy in Alamosa city?: Median gross rent is $881 a month and the median home value is $200,200, so rent absorbs about 22.5% of median household income.
Is Alamosa city affordable compared with the rest of the US?: Homes cost about 4.3× the local median income here versus roughly 3.9× nationally, so Alamosa city is less affordable to buy in than the typical US market, and rent takes 22.5% of median income against the 30% cost-burden line.
How current is this Alamosa city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.