ZIP code 99138 is in Inchelium (36% of residents) and Twin Lakes (8.2%), in Ferry County, Washington. 56% of its residents live outside city limits. It is in Washington's 5th congressional district. Its state senate district is Legislative (Senate) District 7; its state house district is Legislative (House) District 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).
5 voting precincts overlap ZIP 99138.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 99138 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.