ZIP code 63031 is in Florissant (68% of residents) and Hazelwood (9.1%), in St. Louis County, Missouri. 23% of its residents live outside city limits. It is in Missouri's 1st congressional district. Its state senate districts are State Senate District 13 (94%) and State Senate District 14 (6.2%); its state house districts are State House District 75 (47%), State House District 68 (32%), State House District 67 (11%) and State House District 70 (10%).
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).
46 voting precincts overlap ZIP 63031.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:63031")
ZIP 63031 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.