ZIP code 92831: Fullerton, CA
ZIP code 92831 is in Fullerton, in Orange County, California. It is in California's 45th congressional district (77%) and California's 46th congressional district (23%). Its state senate districts are State Senate District 37 (66%) and State Senate District 34 (34%); its state house districts are Assembly District 67 (51%) and Assembly District 59 (49%).
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Fullerton | 100% |
| County | Share of ZIP residents |
|---|---|
| Orange County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Anaheim-Santa Ana-Garden Grove CCD | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| California's 45th congressional district (CA-45) | 77% |
| California's 46th congressional district (CA-46) | 23% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Fred Jung | 714-738-6300 | 100% |
| U.S. Representative (CA-45) | Derek Tran (D) | 202-225-2415 | 77% |
| U.S. Representative (CA-46) | J. Luis Correa (D) | 202-225-2965 | 23% |
| U.S. Senator | Adam B. Schiff (D) | 202-224-3841 | statewide |
| U.S. Senator | Alex Padilla (D) | 202-224-3553 · contact form | statewide |
| State Senator (State Senate District 37) | Steve Choi (R) | 949-223-5472 | 66% |
| State Senator (State Senate District 34) | Tom Umberg (Democratic) | 714-558-3785 | 34% |
| Assembly Member (Assembly District 67) | Sharon Quirk-Silva (Democratic) | 714-521-6713 | 51% |
| Assembly Member (Assembly District 59) | Phillip Chen (R) | 714-529-5502 | 49% |
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: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Fullerton laws: search for the Fullerton, California code of ordinances
- Orange County website: https://ocgov.com/
- Orange County laws: search for the Orange County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 37 | 66% |
| State Senate District 34 | 34% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 67 | 51% |
| Assembly District 59 | 49% |
Voting precincts
27 voting precincts overlap ZIP 92831. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:92831")
ZIP 92831 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.