Boundary Atlas

California's 39th congressional district (CA-39)

California's 39th congressional district (CA-39) lies within Riverside County, and 24 ZIP codes (6 wholly inside it). Its 2020 population was 756,504. This is the map in force for the November 3, 2026 election.

756,504residents (2020 Census)
1counties
24ZIP codes
239voting precincts

Who represents CA-39

OfficeMemberContact
U.S. Representative (CA-39)Mark Takano (D)202-225-2305
U.S. SenatorAdam B. Schiff (D)202-224-3841
U.S. SenatorAlex Padilla (D)202-224-3553 · contact form

Elected in 2024 under CA's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).

Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).

Counties

CountyShare of the county's residents in CA-39
Riverside County31%

ZIP codes

Percentages mark ZIPs only partly in CA-39: the share of that ZIP's residents inside it.

Towns

Riverside CCD, Jurupa CCD, Perris Valley CCD, Lake Mathews CCD, Corona CCD and Elsinore Valley CCD.

Get this in your AI agent

Your agent can draw every precinct in CA-39, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

get_boundaries(id="us:congressional_district:0639", children_level="precinct", include_districts=True)