Postal reference / United States

80543Milliken, Colorado

ZIP code 80543 is a United States postal code for Milliken, Colorado. Its county association is Weld County. The map reference point is at 40.3294, -104.8552.

State / territory
Colorado
Recorded place name
Milliken
County association
Weld
Estimated coordinate
40.3294, -104.8552
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ZIP prefix
805 · 42 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
30.911 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
80534JohnstownCOWeld3.6
80623GilcrestCOWeld4.9
80632GreeleyCOWeld5.9
80645La SalleCOWeld6.8
80634GreeleyCOWeld7.7
80651PlattevilleCOWeld8.5
80620EvansCOWeld9.0
80639GreeleyCOWeld9.4

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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