Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CO/ALAMOSA

Alamosa ZIP codes, Colorado

Alamosa, CO has 2 ZIP codes (81101 and 81102) and area code 719. The largest is 81101.

USPS city name
2 ZIP codes
Population
9,879
Area code
719

Alamosa in numbers

About 9,879 people live in Alamosa, in 4,084 households. The median household income is $49,688 a year, 48% below the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $225,200 (58% below the Colorado median), and median gross rent is $837 a month. The median age is 31.2; 33.3% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 14 minutes.

Population9,879Alamosa9,879
Households4,084Alamosa4,084
Median age31.2Alamosa31.2Colorado37.7US 38.9
Median household income$49,688Alamosa$49,688Colorado$95,470US $80,734
Median home value$225,200Alamosa$225,200Colorado$539,400US $332,700
Median gross rent$837Alamosa$837Colorado$1,761US $1,413
Bachelor's degree or higher33.3%Alamosa33.3%Colorado45.7%US 35.7%
Mean commute14.1 minAlamosa14.1 minColorado25.2 minUS 26.4 min
Population density1,240 / sq miAlamosa1,240 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Alamosa city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Alamosa

ZIP codes with the USPS city name Alamosa
ZIP City Type Population Median income Median home
81101 Alamosa , CO Standard 15,550 $54,844 $240,400
81102 Alamosa , CO No street area — — —

Map of Alamosa ZIP codes

8110181102

The ZIP codes of Alamosa, CO, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Alamosa

The nearest larger towns are Cañon City (17,122 people, 76 mi), Pueblo West (35,681 people, 83 mi) and Pueblo (111,561 people, 88 mi).

Towns near Alamosa
TownPopulationDistance
Monte Vista 4,141 16.6 mi

More nearby: every ZIP code in Alamosa County · Colorado ZIP codes

Cite this page

zipcodes.pro. “Alamosa, CO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/co/alamosa

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