Postal reference / United States

54923Berlin, Wisconsin

ZIP code 54923 is a United States postal code for Berlin, Wisconsin. Its county association is Green Lake County. The map reference point is at 43.9769, -88.949.

State / territory
Wisconsin
Recorded place name
Berlin
County association
Green Lake
Estimated coordinate
43.9769, -88.949
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ZIP prefix
549 · 66 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
135.659 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
54934EurekaWIWinnebago5.7
54970RedgraniteWIWaushara8.7
54980WaukauWIWinnebago8.9
54941Green LakeWIGreen Lake9.2
54971RiponWIFond du Lac10.5
54963OmroWIWinnebago10.6
54967Poy SippiWIWaushara10.8
54968PrincetonWIGreen Lake12.7

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

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