ZIP code 85618: Mammoth, AZ
ZIP code 85618 is in Mammoth (84% of residents), in Pinal County, Arizona. 16% of its residents live outside city limits. It is in Arizona's 6th congressional district (99%) and Arizona's 2nd congressional district (0.5%). Its state senate district is State Senate District 7; its state house district is State House District 7.
See it on the mapAll of Arizona
City and county
| City or town | Share of ZIP residents |
|---|---|
| Mammoth | 84% |
| County | Share of ZIP residents |
|---|---|
| Pinal County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| San Manuel CCD | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Arizona's 6th congressional district (AZ-06) | 99% |
| Arizona's 2nd congressional district (AZ-02) | 0.5% |
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.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 7 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 7 | 100% |
Voting precincts
3 voting precincts overlap ZIP 85618. 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:85618")
ZIP 85618 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.