Zip Code 53188 — Waukesha, WI
53188 is a ZIP Code associated with Waukesha, WI, located within Waukesha. 53188 ranks #3 out of 26 ZIP codes in Waukesha County by population (and #27 out of 783 in WI). The area supports an estimated population of 34,892 residents across Data Pending housing units, with a population density of 502.4 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (43.021060, -88.292650)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 53188 |
| Primary City | Waukesha |
| State / Province | WI |
| County | Waukesha |
| Total Population | 34,892 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 502.4 people/sq mi |
| Timezone | America/Chicago |
How 53188 Compares
| Metric | ZIP 53188 | Waukesha County | WI State Average |
|---|
| Population | 34,892 | 416,773 (Total) | 5,914,913 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 502.4 /sq mi | -- | -- |
| County Pop Rank | #3 of 26 | -- | -- |
Nearby ZIP Codes
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 →