Jan 31, 2022 · The passage of Prop. 50 changed congressional districts for the 2026 Election. See how your district changed.

Use our interactive map to compare California’s 2021 and 2026 districts for Congress, State Senate, and Assembly. Find out how your community’s district is changing.

Under the 2020 redistricting, California's 40th congressional district is located in Southern California, taking up the majority of northern and eastern Orange County, and parts of southwestern San …

Not sure of your congressional district or who your member is? This service will assist you by matching your ZIP code to your congressional district, with links to your member's website and contact page.

Jan 20, 2021 · Find your U.S. Congress senators and representative in California’s 40th Congressional District (CA40) using a map.

Nov 4, 2025 · See how your congressional district will change if the proposed map goes into effect. Enter your California address below with city, state and zip code. Do not include apartment or suite...

Click on the map to start using the tool. This project is supported by a grant from the Evelyn and Walter Haas, Jr. Fund.

Nov 4, 2025 · California voters decided during a Nov. 4 special election to approve, temporarily, new congressional district maps.

Nov 4, 2025 · Proposition 50 won approval, bringing new congressional maps in 2026 as part of Gavin Newsom’s plan to counter Republican-led redistricting elsewhere.

The boundaries of this district will change as a result of California Proposition 50, which voters approved on November 5, 2025. Click here to read more about the mid-decade redistricting effort in California …