Find the last 4 digits (ZIP+4) for an address in 80534

ZIP 80534, Johnstown, CO is filled in. Just type the street address.

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ZIP Code 80534 – Johnstown, CO

Johnstown, Colorado · Weld County · Mountain time

ZIP code80534
CityJohnstown
StateColorado
CountyWeld CountyLarimer County
Population20,502
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area48.05 sq mi
Center (lat, long)40.3319, -104.9375

Area codes in this area

970

These are the area codes that most often serve ZIP 80534 (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

80543 Milliken · 4.4 mi80542 Mead · 7.5 mi80539 Loveland · 8.5 mi80623 Gilcrest · 8.8 mi80634 Greeley · 9 mi80651 Platteville · 9 mi80632 Greeley · 9.7 mi80513 Berthoud · 9.8 mi

About ZIP 80534

ZIP code 80534 is assigned to Johnstown, Colorado. It crosses 2 counties; most of its land is in Weld County. Its Census area covers about 48.05 square miles of land. The closest neighboring ZIP is 80543 (Milliken), about 4.4 miles away.

Every address in 80534 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