ZIP code 51431 is in Arthur (55% of residents), in Ida County (96%) and Sac County (4.2%), Iowa. 45% of its residents live outside city limits. It is in Iowa's 4th congressional district. Its state senate districts are State Senate District 6 (96%) and State Senate District 4 (4.2%); its state house districts are State House District 12 (96%) and State House District 7 (4.2%).
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).
2 voting precincts overlap ZIP 51431.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:51431")
ZIP 51431 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.