Find the last 4 digits (ZIP+4) for an address in 80031

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ZIP Code 80031 – Westminster, CO

Westminster, Colorado · Adams County · Mountain time

ZIP code80031
CityWestminster
StateColorado
CountyAdams CountyJefferson County
Population35,584
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area8.43 sq mi
Center (lat, long)39.8739, -105.0388

Area codes in this area

303720983

These are the area codes that most often serve ZIP 80031 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

80260 Denver · 2 mi80035 Westminster · 2.6 mi80036 Westminster · 2.6 mi80030 Westminster · 3 mi80234 Denver · 3.1 mi80003 Arvada · 3.6 mi80038 Broomfield · 4.1 mi80021 Broomfield · 4.1 mi

About ZIP 80031

ZIP code 80031 is assigned to Westminster, Colorado. It crosses 2 counties; most of its land is in Adams County. Its Census area covers about 8.43 square miles of land. The closest neighboring ZIP is 80260 (Denver), about 2 miles away.

Every address in 80031 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources