ZIP code 94534: Fairfield, CA
ZIP code 94534 is in Fairfield (91% of residents) and Green Valley (3.9%), in Solano County, California. 5.0% of its residents live outside city limits. It is in California's 8th congressional district. Its state senate district is State Senate District 3; its state house district is Assembly District 11.
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Fairfield | 91% |
| Green Valley | 3.9% |
| County | Share of ZIP residents |
|---|---|
| Solano County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Fairfield-Suisun City CCD | 100% |
| Vacaville CCD | <0.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| California's 8th congressional district (CA-08) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Rick Vaccaro | 707-639-0500 | 91% |
| U.S. Representative (CA-08) | John Garamendi (D) | 202-225-1880 | 100% |
| 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 3) | Christopher Cabaldon (Democratic) | 707-454-3808 | 100% |
| Assembly Member (Assembly District 11) | Lori Wilson (Democratic) | 707-438-7359 | 100% |
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
- Fairfield website: http://www.fairfield.ca.gov
- Fairfield laws: search for the Fairfield, California code of ordinances
- Green Valley laws: search for the Green Valley, California code of ordinances
- Solano County website: https://www.solanocounty.gov/
- Solano County laws: search for the Solano County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 3 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 11 | 100% |
Voting precincts
32 voting precincts overlap ZIP 94534. 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:94534")
ZIP 94534 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.