Every California address sits inside four numbered districts at once: one Congressional district, one State Senate district, one State Assembly district, and one Board of Equalization district. The fastest way to find your California district map numbers is the state’s free address lookup at findyourrep.legislature.ca.gov, which returns your Senate and Assembly numbers from your street address.1California State Legislature. Find Your California Representatives Your congressional number comes from a separate tool linked by the Secretary of State, and it may have changed for the 2026 election.2California Secretary of State. Who Are My Representatives
The Four District Numbers You Have
Article XXI of the California Constitution sets up four separate single-member district maps: State Senate, State Assembly, Congress, and the State Board of Equalization.3Justia. California Constitution Article XXI Section 2 – Redistricting of Senate, Assembly, Congressional and Board of Equalization Districts Each layer has its own boundaries, so your four numbers almost never match. Assembly District 12 and Senate District 12 cover completely different geography. A district number only means something inside its own map.
- Your Congressional district number (1 through 52) picks your U.S. House representative in Washington.
- Your State Senate district number (1 through 40) picks your state senator, who serves a four-year term in Sacramento.
- Your State Assembly district number (1 through 80) picks your Assembly member, who serves a two-year term in Sacramento.
- Your Board of Equalization district number (1 through 4) picks your BOE member, who oversees tax administration and county property-tax assessors.4California Board of Equalization. Summary of Constitutional and Statutory Authorities
Numbering runs north to south in every category. District 1 in each map sits at the state’s northern edge; the highest numbers sit in San Diego and the far south. Bay Area and Central Valley addresses tend to carry mid-range numbers.
How to Look Up Your District Numbers
For your State Senate and State Assembly numbers, go to findyourrep.legislature.ca.gov and enter your street address, city, and five-digit zip code.1California State Legislature. Find Your California Representatives The tool returns both representatives and their district numbers. A nine-digit zip is not required.
For your Congressional district number, use the links on the Secretary of State’s “Who Are My Representatives” page.2California Secretary of State. Who Are My Representatives Confirm the tool reflects the current map rather than the 2022–2024 lines (see the Proposition 50 section below).
The Citizens Redistricting Commission posts the final certified maps for Senate, Assembly, and Board of Equalization districts at wedrawthelines.ca.gov if you want to see the lines themselves.5California Citizens Redistricting Commission. About Us
If your address is near a boundary, zoom in as far as the map allows. District lines sometimes run down the middle of a street, and being on the wrong side by one house can land you in a different district. Apartment buildings that straddle a line can split between districts, so the unit number can matter. When the online result looks wrong, call your county elections office to confirm.
Your Congressional Number May Have Changed for 2026
California voters approved Proposition 50 in November 2025, replacing the commission-drawn congressional map with one drawn by the state legislature.6California Secretary of State. California Redistricting The total stays at 52 districts, but the lines moved, and some residents now fall in a different congressional district than they did in 2022 or 2024. The legislatively drawn map stays in effect until the commission draws new maps after the 2030 Census.7Legislative Analyst’s Office. Proposition 50 Ballot Analysis
State Senate, Assembly, and Board of Equalization districts were not affected by Proposition 50 and still use the 2020-cycle maps the commission drew.6California Secretary of State. California Redistricting If you already memorized your district numbers from a previous election, your Senate and Assembly numbers almost certainly haven’t moved. Check the congressional number again.
Why You Might Not Vote for a State Senator This Cycle
State senators serve four-year terms, and the 40 seats are staggered. Even-numbered districts vote in one cycle; odd-numbered districts vote two years later. When redistricting shifts your address from an even-numbered district to an odd-numbered one (or the reverse), you can wait an extra two years before a Senate race appears on your ballot. People in that gap are sometimes called deferred voters, and the Senate’s Committee on Rules assigns a sitting senator to handle constituent services for those areas in the meantime. Some addresses go the other way and get accelerated into a district whose election comes up sooner.
This quirk only applies to the Senate. Assembly members and U.S. House members both serve two-year terms with no staggering, so every Assembly and Congressional district appears on every general-election ballot.
Local District Numbers Are Separate
The four numbers above cover only state and federal representation. California cities and counties draw their own council and supervisorial districts under the FAIR MAPS Act, and school districts and special districts often have their own elected-board boundaries. None of those local district numbers share lines or numbering with the state maps. “District 3” on your city council has nothing to do with Assembly District 3 or Senate District 3. For local numbers, check your city’s or county’s elections page rather than the state tools above.