Boundary Atlas

ZIP code 92084: Vista, CA

ZIP code 92084 is in Vista (73% of residents) and Bonsall (1.5%), in San Diego County, California. 26% of its residents live outside city limits. It is in California's 48th congressional district (97%) and California's 49th congressional district (2.8%). Its state senate districts are State Senate District 38 (73%) and State Senate District 40 (27%); its state house districts are Assembly District 74 (73%), Assembly District 76 (26%) and Assembly District 75 (1.5%).

49,941residents (2020 Census)
28.3 sq miland area
2cities and towns
2congressional districts
41voting precincts

See it on the mapAll of California

City and county

City or townShare of ZIP residents
Vista73%
Bonsall1.5%

CountyShare of ZIP residents
San Diego County100%

Town or county subdivisionShare of ZIP residents
Oceanside-Escondido CCD98%
Fallbrook CCD1.5%

Congressional districts

Congressional districtShare of ZIP residents
California's 48th congressional district (CA-48)97%
California's 49th congressional district (CA-49)2.8%

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 districtShare of ZIP residents
State Senate District 3873%
State Senate District 4027%

State house districtShare of ZIP residents
Assembly District 7473%
Assembly District 7626%
Assembly District 751.5%

Voting precincts

41 voting precincts overlap ZIP 92084. 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:92084")

ZIP 92084 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.