ZIP code 85143: San Tan Valley, AZ
ZIP code 85143 is in San Tan Valley (98% of residents), in Pinal County, Arizona. It is in Arizona's 5th congressional district (98%) and Arizona's 2nd congressional district (1.7%). Its state senate districts are State Senate District 15 (98%) and State Senate District 7 (1.7%); its state house districts are State House District 15 (98%) and State House District 7 (1.7%).
See it on the mapAll of Arizona
City and county
| City or town | Share of ZIP residents |
|---|---|
| San Tan Valley | 98% |
| Florence | <0.1% |
| County | Share of ZIP residents |
|---|---|
| Pinal County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| North Pinal CCD | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Arizona's 5th congressional district (AZ-05) | 98% |
| Arizona's 2nd congressional district (AZ-02) | 1.7% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (AZ-05) | Andy Biggs (R) | 202-225-2635 | 98% |
| U.S. Representative (AZ-02) | Elijah Crane (R) | 202-225-3361 | 1.7% |
| U.S. Senator | Mark Kelly (D) | 202-224-2235 · contact form | statewide |
| U.S. Senator | Ruben Gallego (D) | 202-224-4521 | statewide |
| State Senator (State Senate District 15) | Jake Hoffman (R) | 98% | |
| State Senator (State Senate District 7) | Wendy Rogers (R) | 1.7% | |
| State Representative (State House District 15) | Michael Way (R) | 98% | |
| State Representative (State House District 15) | Neal Carter (R) | 98% | |
| State Representative (State House District 7) | Sylvia Allen (R) | 1.7% | |
| State Representative (State House District 7) | Walt Blackman (R) | 1.7% |
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
- San Tan Valley laws: search for the San Tan Valley, Arizona code of ordinances
- Pinal County website: https://www.pinal.gov/
- Pinal County laws: search for the Pinal County, Arizona code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 15 | 98% |
| State Senate District 7 | 1.7% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 15 | 98% |
| State House District 7 | 1.7% |
Voting precincts
9 voting precincts overlap ZIP 85143. 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:85143")
ZIP 85143 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.