ZIP code 53057 is in Mount Calvary (35% of residents), in Fond du Lac County, Wisconsin. 65% of its residents live outside city limits. It is in Wisconsin's 6th congressional district. Its state senate districts are State Senate District 9 (68%) and State Senate District 20 (32%); its state house districts are Assembly District 27 (68%), Assembly District 59 (29%) and Assembly District 60 (3.0%).
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).
6 voting precincts overlap ZIP 53057.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:53057")
ZIP 53057 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.