ZIP code 53188 is in Waukesha (86% of residents), Pewaukee (3.9%) and Waukesha (2.2%), in Waukesha County, Wisconsin. 8.3% of its residents live outside city limits. It is in Wisconsin's 5th congressional district. Its state senate districts are State Senate District 28 (88%), State Senate District 33 (8.3%) and State Senate District 5 (3.9%); its state house districts are Assembly District 82 (88%), Assembly District 97 (8.3%) and Assembly District 15 (3.9%).
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
30 voting precincts overlap ZIP 53188.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 53188 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code;
PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.