ZIP code 62203 is in East St. Louis (66% of residents), Cahokia Heights (21%) and Washington Park (9.3%), in St. Clair County, Illinois. It is in Illinois's 13th congressional district. Its state senate district is State Senate District 57; its state house districts are State House District 114 (87%) and State House District 113 (13%).
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).
14 voting precincts overlap ZIP 62203.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 62203 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.