Find the last 4 digits (ZIP+4) for an address in 54121

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ZIP Code 54121 – Florence, WI

Florence, Wisconsin · Florence County · Central time

ZIP code54121
CityFlorence
StateWisconsin
CountyFlorence County
Population3,257
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area272.04 sq mi
Center (lat, long)45.8656, -88.3270

Area codes in this area

534715

These are the area codes that most often serve ZIP 54121 (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

54120 Fence · 12.4 mi49802 Kingsford · 12.6 mi49902 Alpha · 13 mi49801 Iron Mountain · 15.5 mi49927 Gaastra · 15.7 mi49876 Quinnesec · 17.4 mi54103 Armstrong Creek · 18.2 mi54119 Dunbar · 18.6 mi

About ZIP 54121

ZIP code 54121 is assigned to Florence, Wisconsin. It lies in Florence County. Its Census area covers about 272.04 square miles of land. The closest neighboring ZIP is 54120 (Fence), about 12.4 miles away.

Every address in 54121 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