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 — STATE/CO/COUNTY/RIO-GRANDE

Rio Grande County, CO ZIP codes

Rio Grande County, CO has 4 ZIP codes, in 4 towns: 81144, 81132, 81154 and 81135.

The county seat is Del Norte.

ZIP codes
4
Towns
4
County seat
Del Norte
County FIPS
08105
Population
11,321
Median household income
$64,411
Land area
912 sq mi
Area code
719

Rio Grande County ZIP codes by town

Del Norte (county seat)
81132

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Rio Grande County ZIP codes

The ZIP codes of Rio Grande County, 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.

Rio Grande County in numbers

About 11,321 people live in Rio Grande County, in 5,133 households, the 37th most populous of Colorado's 64 counties. The median household income is $64,411 a year, 33% below the Colorado median of $95,470 (US: $80,734). The median owner-occupied home is valued at $239,500 (56% below the Colorado median), and median gross rent is $945 a month. The median age is 41.7; 34.5% of adults 25 and over hold a bachelor's degree or higher (45.7% across Colorado); the average commute takes 19 minutes.

Population11,321Rio Grande11,321
Households5,133Rio Grande5,133
Median age41.7Rio Grande41.7Colorado37.7US 38.9
Median household income$64,411Rio Grande$64,411Colorado$95,470US $80,734
Median home value$239,500Rio Grande$239,500Colorado$539,400US $332,700
Median gross rent$945Rio Grande$945Colorado$1,761US $1,413
Bachelor's degree or higher34.5%Rio Grande34.5%Colorado45.7%US 35.7%
Mean commute19.2 minRio Grande19.2 minColorado25.2 minUS 26.4 min
Population density12 / sq miRio Grande12 / sq mi

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

Largest towns in Rio Grande County

Largest towns in Rio Grande County
TownZIP codesPopulation
Monte Vista 1 4,141
Del Norte 1 1,653
South Fork 1 724

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Rio Grande County.

Not sure you are in Rio Grande County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Rio Grande County, with figures

ZIP codes in Rio Grande County
ZIP City Type Population Median income Median home
81132 Del Norte , CO Standard 3,252 $55,000 $209,500
81135 Homelake , CO No street area — — —
81144 Monte Vista , CO Standard 6,543 $64,662 $234,200
81154 South Fork , CO Standard 1,363 $77,177 $511,300

Cite this page

zipcodes.pro. “Rio Grande County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/co/county/rio-grande

Underlying data is public domain or openly licensed — sources, vintages and licences.