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Zip Code 53203 — Milwaukee, WI

ZIP Code 53203 is associated with Milwaukee, WI, in Milwaukee County. The listed population estimate is 2,357; estimated density is 2,047.7 people per square mile. Among records with population estimates, it ranks #35 of 36 in Milwaukee County and #437 of 780 in WI.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.038280, -87.916030)

Data MetricLocal Statistic
Postal / Zip Code53203
Primary CityMilwaukee
State / ProvinceWI
CountyMilwaukee
Total Population2,357
Population Density2,047.7 people/sq mi
TimezoneAmerica/Chicago

How 53203 Compares

MetricZIP 53203Milwaukee County recordsWI records
Population estimate2,357926,469 (sum)5,914,913 (sum)
Population Density2,047.7 /sq mi----
County population rank#35 of 36----
State population rank#437 of 780----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in WI

ZIP CodeCityDistancePopulation estimate
ZIP 53233Milwaukee0.9 mi14,497
ZIP 53202Milwaukee1.0 mi25,861
ZIP 53205Milwaukee1.4 mi9,265
ZIP 53204Milwaukee1.5 mi39,996
ZIP 53212Milwaukee2.5 mi28,938

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 →