Waukesha County, Wisconsin ZIP codes
31 ZIP codes are in Waukesha County, plus 5 that cross in from neighboring counties. It's part of the Milwaukee-Waukesha, WI metro area.
- ZIP codes
- 31
- Population in these ZIPs
- 416,773
- Avg. median income
- $107,400population-weighted
- Cities & towns
- 24
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Waukesha County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 53005 | Brookfield | 21,675 | $126,739 | $504,100 |
| 53007 | Butler | 1,859 | $60,000 | $302,000 |
| 53008 PO Box | Brookfield | — | — | — |
| 53018 | Delafield | 8,201 | $124,595 | $688,300 |
| 53029 | Hartland | 21,778 | $108,152 | $672,400 |
| 53045 | Brookfield | 23,329 | $123,750 | $546,000 |
| 53046 | Lannon | 1,482 | $83,889 | $522,300 |
| 53051 | Menomonee Falls | 39,559 | $100,031 | $436,800 |
| 53052 PO Box | Menomonee Falls | — | — | — |
| 53056 PO Box | Merton | — | — | — |
| 53058 | Nashotah | 3,405 | $104,444 | $729,100 |
| 53064 PO Box | North Lake | — | — | — |
| 53066 | Oconomowoc | 37,558 | $113,114 | $582,500 |
| 53069 | Okauchee | 671 | $130,722 | $747,900 |
| 53072 | Pewaukee | 26,200 | $98,538 | $543,500 |
| 53089 | Sussex | 20,588 | $120,875 | $547,700 |
| 53103 | Big Bend | 3,762 | $137,083 | $503,400 |
| 53118 | Dousman | 7,554 | $108,772 | $614,800 |
| 53119 | Eagle | 5,803 | $117,759 | $536,900 |
| 53122 | Elm Grove | 6,508 | $157,962 | $687,400 |
| 53127 | Genesee Depot | 79 | — | — |
| 53146 | New Berlin | 7,285 | $110,035 | $444,600 |
| 53149 | Mukwonago | 19,614 | $110,608 | $514,600 |
| 53150 | Muskego | 26,259 | $109,276 | $525,300 |
| 53151 | New Berlin | 32,824 | $101,176 | $452,400 |
| 53153 | North Prairie | 2,548 | $152,543 | $511,500 |
| 53183 | Wales | 3,111 | $108,827 | $570,100 |
| 53186 | Waukesha | 33,374 | $74,588 | $368,100 |
| 53187 PO Box | Waukesha | — | — | — |
| 53188 | Waukesha | 34,892 | $92,409 | $428,400 |
| 53189 | Waukesha | 26,855 | $117,008 | $509,600 |
ZIP codes partly in Waukesha County
These ZIP codes are mostly in a neighboring county but cover part of Waukesha County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 53017 | Colgate | Washington County | 5,458 | $153,917 | $569,000 |
| 53036 | Ixonia | Jefferson County | 3,730 | $92,674 | $479,100 |
| 53185 | Waterford | Racine County | 18,560 | $103,225 | $463,800 |
| 53225 | Milwaukee | Milwaukee County | 25,187 | $56,545 | $234,800 |
| 53227 | Milwaukee | Milwaukee County | 22,885 | $73,321 | $293,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Waukesha County
Nearby counties
Frequently asked questions
How many ZIP codes are in Waukesha County, Wisconsin?
31 ZIP codes are mainly in Waukesha County, and 5 more ZIP codes from neighboring areas reach partly into it.
What cities are in Waukesha County?
ZIP codes in Waukesha County use the city names Big Bend, Brookfield, Butler, Delafield, Dousman, Eagle, Elm Grove, Genesee Depot, Hartland, Lannon, Menomonee Falls and Merton and others.
What metro area is Waukesha County in?
Waukesha County is part of the Milwaukee-Waukesha, WI metropolitan statistical area.