ZIP Codes in Waukesha, WI
Waukesha uses 3 ZIP codes, all in Waukesha County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Waukesha ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 53186 | standard | Waukesha | 33,374 |
| 53188 | standard | Waukesha | 34,892 |
| 53189 | standard | Waukesha | 26,855 |
Finding a ZIP+4 in Waukesha
Knowing which of these 3 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Waukesha street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of Waukesha addresses and download it complete.