Find the last 4 digits (ZIP+4) for an address in 53551

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ZIP Code 53551 – Lake Mills, WI

Lake Mills, Wisconsin · Jefferson County · Central time

ZIP code53551
CityLake Mills
StateWisconsin
CountyJefferson County
Population9,731
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area39.55 sq mi
Center (lat, long)43.0795, -88.9161

Area codes in this area

353608

These are the area codes that most often serve ZIP 53551 (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

53038 Johnson Creek · 6.3 mi53594 Waterloo · 7.7 mi53523 Cambridge · 8.7 mi53531 Deerfield · 9.4 mi53549 Jefferson · 10 mi53559 Marshall · 10.3 mi53094 Watertown · 10.3 mi53538 Fort Atkinson · 12 mi

About ZIP 53551

ZIP code 53551 is assigned to Lake Mills, Wisconsin. It lies in Jefferson County. Its Census area covers about 39.55 square miles of land. The closest neighboring ZIP is 53038 (Johnson Creek), about 6.3 miles away.

Every address in 53551 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