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Zip Code 81638 — Hamilton, CO

81638 is a ZIP Code associated with Hamilton, CO, located within Moffat. The postal region supports an estimated population of 69 residents across Data Pending housing units, with a population density of 0.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.305890, -107.642050)

Data MetricLocal Statistic
Postal / Zip Code81638
Primary CityHamilton
State / ProvinceCO
CountyMoffat
Total Population69
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.1 people/sq mi
TimezoneAmerica/Denver

How 81638 Compares

MetricZIP 81638Moffat CountyCO State Average
Population6913,2205,862,421
Median IncomeData PendingN/AN/A
Population Density0.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 81641Meeker18.4 mi3,621N/A
Zip 81639Hayden25.9 mi2,618N/A
Zip 81625Craig28.0 mi12,307N/A
Zip 80469Phippsburg36.1 mi402N/A
Zip 80483Yampa40.0 mi455N/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 →