ZIP code 59640 is in Marysville (73% of residents), in Lewis and Clark County, Montana. 27% of its residents live outside city limits. It is in Montana's 2nd congressional district. Its state senate districts are State Senate District 9 (73%) and State Senate District 38 (27%); its state house districts are State House District 17 (73%) and State House District 76 (27%).
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 59640.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 59640 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.