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Zip Code 80428 — Clark, CO

80428 is a ZIP Code associated with Clark, CO, located within Routt. 80428 ranks #4 out of 9 ZIP codes in Routt County by population (and #367 out of 527 in CO). The area supports an estimated population of 720 residents across Data Pending housing units, with a population density of 1.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.853260, -106.913730)

Data MetricLocal Statistic
Postal / Zip Code80428
Primary CityClark
State / ProvinceCO
CountyRoutt
Total Population720
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1.4 people/sq mi
TimezoneAmerica/Denver

How 80428 Compares

MetricZIP 80428Routt CountyCO State Average
Population72025,112 (Total)5,862,421 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density1.4 /sq mi----
County Pop Rank#4 of 9----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 81653Slater16.8 miN/AN/A
Zip 80487Steamboat Springs18.4 mi18,525N/A
Zip 81639Hayden28.5 mi2,618N/A
Zip 80480Walden32.5 mi1,130N/A
Zip 80434Cowdrey33.2 mi32N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →