Boundary Atlas

ZIP code 85131: Eloy, AZ

ZIP code 85131 is in Eloy (93% of residents), in Pinal County, Arizona. 6.8% of its residents live outside city limits. It is in Arizona's 6th congressional district (98%), Arizona's 7th congressional district (1.8%) and Arizona's 2nd congressional district (0.1%). Its state senate district is State Senate District 16; its state house district is State House District 16.

16,723residents (2020 Census)
306.7 sq miland area
5cities and towns
3congressional districts
10voting precincts

See it on the mapAll of Arizona

City and county

City or townShare of ZIP residents
Eloy93%
Red Rock0.2%
Coolidge0.1%
Picacho<0.1%
Casa Grande<0.1%

CountyShare of ZIP residents
Pinal County100%

Town or county subdivisionShare of ZIP residents
Eloy CCD100%
Florence CCD0.3%

Congressional districts

Congressional districtShare of ZIP residents
Arizona's 6th congressional district (AZ-06)98%
Arizona's 7th congressional district (AZ-07)1.8%
Arizona's 2nd congressional district (AZ-02)0.1%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (AZ-06)Juan Ciscomani (R)202-225-254298%
U.S. Representative (AZ-07)Adelita S. Grijalva (D)202-225-24351.8%
U.S. Representative (AZ-02)Elijah Crane (R)202-225-33610.1%
U.S. SenatorMark Kelly (D)202-224-2235 · contact formstatewide
U.S. SenatorRuben Gallego (D)202-224-4521statewide
State Senator (State Senate District 16)T.J. Shope (R)100%
State Representative (State House District 16)Chris Lopez (R)100%
State Representative (State House District 16)Teresa Martinez (R)100%

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).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 16100%

State house districtShare of ZIP residents
State House District 16100%

Voting precincts

10 voting precincts overlap ZIP 85131. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

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:85131")

ZIP 85131 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.