ZIP code 51247 is in Rock Valley (75% of residents), in Sioux County (99%) and Lyon County (0.8%), Iowa. 25% of its residents live outside city limits. It is in Iowa's 4th congressional district. Its state senate district is State Senate District 2; its state house districts are State House District 4 (97%) and State House District 3 (2.7%).
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).
6 voting precincts overlap ZIP 51247.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:51247")
ZIP 51247 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.