ZIP code 85204 is in Mesa, in Maricopa County, Arizona. It is in Arizona's 4th congressional district. Its state senate districts are State Senate District 9 (97%) and State Senate District 10 (3.0%); its state house districts are State House District 9 (97%) and State House District 10 (3.0%).
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).
18 voting precincts overlap ZIP 85204.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:85204")
ZIP 85204 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.