ZIP code 60431 is in Joliet (91% of residents) and Crystal Lawns (3.7%), in Will County (71%) and Kendall County (29%), Illinois. 5.0% of its residents live outside city limits. It is in Illinois's 14th congressional district. Its state senate districts are State Senate District 49 (79%) and State Senate District 43 (21%); its state house districts are State House District 97 (47%), State House District 98 (32%) and State House District 86 (21%).
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).
17 voting precincts overlap ZIP 60431.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 60431 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.