County · Wisconsin · United States
Waukesha County ZIP codes
26 ZIP codes · 22 cities · FIPS 55133
Key facts
- State
- Wisconsin (WI)
- FIPS code
- 55133
- Population
- 409,040
- Median household income
- $104,100
- Median age
- 43.3
- Land area
- 549.7 sq mi (1,423.8 km²)
- Population density
- 744 / sq mi
- Area codes
- 262
Cities and ZIP codes in Waukesha County (22)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.