ZIP code 15864 is in Summerville (28% of residents), in Jefferson County (62%) and Clarion County (38%), Pennsylvania. 72% of its residents live outside city limits. It is in Pennsylvania's 15th congressional district. Its state senate districts are State Senate District 25 (55%), State Senate District 21 (38%) and State Senate District 41 (7.0%); its state house districts are State House District 66 (62%) and State House District 63 (38%).
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).
7 voting precincts overlap ZIP 15864.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:15864")
ZIP 15864 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.