ZIP code 97231 is in Portland (28% of residents), in Multnomah County (94%), Washington County (4.8%) and Columbia County (1.5%), Oregon. 72% of its residents live outside city limits. It is in Oregon's 1st congressional district. Its state senate districts are State Senate District 16 (56%), State Senate District 17 (42%) and State Senate District 15 (2.3%); its state house districts are State House District 31 (56%), State House District 33 (39%), State House District 34 (2.5%) and State House District 30 (2.3%).
8 voting precincts overlap ZIP 97231.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:97231")
ZIP 97231 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.