California's 45th congressional district (CA-45)
California's 45th congressional district (CA-45) covers parts or all of Orange County and Los Angeles County, and 32 ZIP codes (14 wholly inside it). Its 2020 population was 758,321. This is the map in force for the November 3, 2026 election.
Who represents CA-45
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (CA-45) | Derek Tran (D) | 202-225-2415 |
| 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-45 |
|---|---|
| Orange County | 19% |
| Los Angeles County | 1.6% |
ZIP codes
Percentages mark ZIPs only partly in CA-45: the share of that ZIP's residents inside it.
- 90620 (100%)
- 90621
- 90623
- 90630
- 90638 (1.0%)
- 90650 (53%)
- 90680 (32%)
- 90701
- 90703
- 90713 (2.1%)
- 90715
- 90716
- 90720 (6.3%)
- 90740 (2.5%)
- 92655
- 92683 (100%)
- 92703 (17%)
- 92704 (17%)
- 92708
- 92802 (0.4%)
- 92804 (3.1%)
- 92831 (77%)
- 92832 (15%)
- 92833 (44%)
- 92835 (33%)
- 92840
- 92841
- 92843
- 92844
- 92845
- 92868 (1.2%)
- 92870 (28%)
Towns
North Coast CCD, Downey-Norwalk CCD, Anaheim-Santa Ana-Garden Grove CCD and Long Beach-Lakewood CCD.
Get this in your AI agent
Your agent can draw every precinct in CA-45, 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:0645", children_level="precinct", include_districts=True)