Postal reference / United States

54020Osceola, Wisconsin

ZIP code 54020 is a United States postal code for Osceola, Wisconsin. Its county association is Polk County. The map reference point is at 45.3218, -92.6971.

State / territory
Wisconsin
Recorded place name
Osceola
County association
Polk
Estimated coordinate
45.3218, -92.6971
View on OpenStreetMap
ZIP prefix
540 · 25 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
73.694 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.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore Wisconsin

Browse the other 895 ZIP codes recorded for Wisconsin, sorted by code with place and county.

Wisconsin directory

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
55074ShaferMNChisago4.0
54009DresserWIPolk6.9
55073ScandiaMNWashington7.4
55045LindstromMNChisago8.4
55084Taylors FallsMNChisago9.5
55012Center CityMNChisago9.8
55013Chisago CityMNChisago9.9
55047Marine On Saint CroixMNWashington10.6

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

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup