California's 42nd congressional district (CA-42)
California's 42nd congressional district (CA-42) covers parts or all of Orange County and Los Angeles County, and 39 ZIP codes (22 wholly inside it). Its 2020 population was 757,992. This is the map in force for the November 3, 2026 election.
Who represents CA-42
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (CA-42) | Robert Garcia (D) | 202-225-7924 |
| U.S. Senator | Adam B. Schiff (D) | 202-224-3841 |
| U.S. Senator | Alex 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
| County | Share of the county's residents in CA-42 |
|---|---|
| Orange County | 13% |
| Los Angeles County | 3.3% |
ZIP codes
Percentages mark ZIPs only partly in CA-42: the share of that ZIP's residents inside it.
- 90704
- 90731 (<0.1%)
- 90740 (73%)
- 90742
- 90743
- 90755
- 90802
- 90803
- 90804
- 90805 (1.1%)
- 90806
- 90807 (91%)
- 90808 (27%)
- 90810 (19%)
- 90813
- 90814
- 90815 (99%)
- 90822
- 90831
- 90840
- 92612 (<0.1%)
- 92614 (<0.1%)
- 92617 (<0.1%)
- 92625 (89%)
- 92626
- 92627
- 92646
- 92647
- 92648
- 92649
- 92657 (1.1%)
- 92660 (71%)
- 92661
- 92662
- 92663
- 92683 (0.1%)
- 92697 (4.3%)
- 92704 (20%)
- 92707 (24%)
Towns
Central Coast CCD, Long Beach-Lakewood CCD, North Coast CCD, Palos Verdes CCD and Anaheim-Santa Ana-Garden Grove CCD.
Get this in your AI agent
Your agent can draw every precinct in CA-42, 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:0642", children_level="precinct", include_districts=True)