ZIP code 99223 is in Spokane (65% of residents), in Spokane County, Washington. 35% of its residents live outside city limits. It is in Washington's 5th congressional district. Its state senate districts are Legislative (Senate) District 3 (65%) and Legislative (Senate) District 9 (35%); its state house districts are Legislative (House) District 3 (65%) and Legislative (House) District 9 (35%).
Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
32 voting precincts overlap ZIP 99223.
Map them, with each precinct's share of the ZIP's residents.
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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:99223")
ZIP 99223 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.