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Zip Code 53551 — Lake Mills, WI

53551 is a ZIP Code associated with Lake Mills, WI, located within Jefferson. The postal region supports an estimated population of 9,731 residents across Data Pending housing units, with a population density of 95.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.078310, -88.915080)

Data MetricLocal Statistic
Postal / Zip Code53551
Primary CityLake Mills
State / ProvinceWI
CountyJefferson
Total Population9,731
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density95.0 people/sq mi
TimezoneAmerica/Chicago

How 53551 Compares

MetricZIP 53551Jefferson CountyWI State Average
Population9,73176,9155,914,913
Median IncomeData PendingN/AN/A
Population Density95.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 53038Johnson Creek6.3 mi4,192N/A
Zip 53594Waterloo7.8 mi5,199N/A
Zip 53523Cambridge8.8 mi5,074N/A
Zip 53549Jefferson9.3 mi9,873N/A
Zip 53531Deerfield9.5 mi4,430N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →