Boundary Atlas

ZIP code 86403: Lake Havasu City, AZ

ZIP code 86403 is in Lake Havasu City, in Mohave County, Arizona. It is in Arizona's 9th congressional district. Its state senate district is State Senate District 30; its state house district is State House District 30.

17,787residents (2020 Census)
11.0 sq miland area
1cities and towns
1congressional district
2voting precincts

See it on the mapAll of Arizona

City and county

City or townShare of ZIP residents
Lake Havasu City100%

CountyShare of ZIP residents
Mohave County100%

Town or county subdivisionShare of ZIP residents
Lake Havasu City CCD100%

Congressional district

Congressional districtShare of ZIP residents
Arizona's 9th congressional district (AZ-09)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 30100%

State house districtShare of ZIP residents
State House District 30100%

Voting precincts

2 voting precincts overlap ZIP 86403. Map them, with each precinct's share of the ZIP's residents.

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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:86403")

ZIP 86403 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.