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Zip Code 80543 — Milliken, CO

80543 is a ZIP Code associated with Milliken, CO, located within Weld. 80543 ranks #9 out of 35 ZIP codes in Weld County by population (and #177 out of 527 in CO). The area supports an estimated population of 9,774 residents across Data Pending housing units, with a population density of 122.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.346450, -104.853200)

Data MetricLocal Statistic
Postal / Zip Code80543
Primary CityMilliken
State / ProvinceCO
CountyWeld
Total Population9,774
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density122.1 people/sq mi
TimezoneAmerica/Denver

How 80543 Compares

MetricZIP 80543Weld CountyCO State Average
Population9,774396,054 (Total)5,862,421 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density122.1 /sq mi----
County Pop Rank#9 of 35----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 80534Johnstown4.4 mi20,502N/A
Zip 80634Greeley4.9 mi65,622N/A
Zip 80623Gilcrest5.6 mi1,026N/A
Zip 80620Evans7.6 mi20,798N/A
Zip 80651Platteville7.8 mi4,837N/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 →