Boundary Atlas

ZIP code 85601: Arivaca, AZ

ZIP code 85601 is in Arivaca (97% of residents), in Pima County, Arizona. It is in Arizona's 7th congressional district. Its state senate district is State Senate District 21; its state house district is State House District 21.

644residents (2020 Census)
165.8 sq miland area
1cities and towns
1congressional district
1voting precincts

See it on the mapAll of Arizona

City and county

City or townShare of ZIP residents
Arivaca97%

CountyShare of ZIP residents
Pima County100%

Town or county subdivisionShare of ZIP residents
Arivaca CCD100%

Congressional district

Congressional districtShare of ZIP residents
Arizona's 7th congressional district (AZ-07)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 21100%

State house districtShare of ZIP residents
State House District 21100%

Voting precincts

1 voting precinct overlap ZIP 85601. 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:85601")

ZIP 85601 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.