ZIP code 40203 is in Louisville, in Jefferson County, Kentucky. It is in Kentucky's 3rd congressional district. Its state senate districts are State Senate District 35 (46%), State Senate District 33 (39%) and State Senate District 26 (15%); its state house districts are State House District 43 (72%) and State House District 42 (28%).
Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
27 voting precincts overlap ZIP 40203.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:40203")
ZIP 40203 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.