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Zip Code 54234 — Sister Bay, WI

54234 is a ZIP Code associated with Sister Bay, WI, located within Door. The postal region supports an estimated population of 2,158 residents across Data Pending housing units, with a population density of 35.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (45.183770, -87.092390)

Data MetricLocal Statistic
Postal / Zip Code54234
Primary CitySister Bay
State / ProvinceWI
CountyDoor
Total Population2,158
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density35.5 people/sq mi
TimezoneAmerica/Chicago

How 54234 Compares

MetricZIP 54234Door CountyWI State Average
Population2,15829,8265,914,913
Median IncomeData PendingN/AN/A
Population Density35.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 54211Ephraim4.0 mi403N/A
Zip 54210Ellison Bay5.6 mi942N/A
Zip 54202Baileys Harbor7.7 mi1,772N/A
Zip 54212Fish Creek8.0 mi980N/A
Zip 54209Egg Harbor14.8 mi1,485N/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 →