ZIP code 46307 is in Crown Point (50% of residents), Winfield (10%), Lakes of the Four Seasons (10%), Schererville (8.4%), St. John (1.5%) and Merrillville (1.1%), in Lake County (95%) and Porter County (5.1%), Indiana. 19% of its residents live outside city limits. It is in Indiana's 1st congressional district. Its state senate districts are State Senate District 6 (78%), State Senate District 1 (16%), State Senate District 5 (5.1%) and State Senate District 3 (1.1%); its state house districts are State House District 19 (77%), State House District 14 (14%), State House District 15 (7.8%) and State House District 11 (1.2%).
60 voting precincts overlap ZIP 46307.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:46307")
ZIP 46307 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.