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Zip Code 80428 — Clark, CO

ZIP Code 80428 is associated with Clark, CO, in Routt County. The listed population estimate is 720; estimated density is 1.4 people per square mile. Among records with population estimates, it ranks #4 of 8 in Routt County and #367 of 512 in CO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.853260, -106.913730)

Data MetricLocal Statistic
Postal / Zip Code80428
Primary CityClark
State / ProvinceCO
CountyRoutt
Total Population720
Population Density1.4 people/sq mi
TimezoneAmerica/Denver

How 80428 Compares

MetricZIP 80428Routt County recordsCO records
Population estimate72025,112 (sum)5,862,421 (sum)
Population Density1.4 /sq mi----
County population rank#4 of 8----
State population rank#367 of 512----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CO

ZIP CodeCityDistancePopulation estimate
ZIP 81653Slater16.8 miN/A
ZIP 80487Steamboat Springs18.4 mi18,525
ZIP 81639Hayden28.5 mi2,618
ZIP 80480Walden32.5 mi1,130
ZIP 80434Cowdrey33.2 mi32

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 →