ZIP code 99603 is in Homer (51% of residents), Fritz Creek (21%), Diamond Ridge (11%), Fox River (6.0%), Kachemak (5.3%), Nanwalek (2.3%) and Port Graham (1.5%), in Kenai Peninsula Borough, Alaska. It is in Alaska's at-large congressional district. Its state senate districts are State Senate District C (96%) and State Senate District S (3.8%); its state house districts are State House District 6 (96%) and State House District 37 (3.8%).
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 99603.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 99603 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.