ZIP code 93440: Los Alamos, CA
ZIP code 93440 is in Los Alamos (90% of residents), in Santa Barbara County, California. 10% of its residents live outside city limits. It is in California's 24th congressional district. Its state senate district is State Senate District 21; its state house district is Assembly District 37.
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Los Alamos | 90% |
| County | Share of ZIP residents |
|---|---|
| Santa Barbara County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Solvang-Santa Ynez CCD | 95% |
| Lompoc CCD | 4.3% |
| Santa Maria CCD | 0.8% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| California's 24th congressional district (CA-24) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CA-24) | Salud O. Carbajal (D) | 202-225-3601 | 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 21) | Monique Limón (Democratic) | 805-988-1940 | 100% |
| Assembly Member (Assembly District 37) | Gregg Hart (Democratic) | 805-346-1237 | 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: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Los Alamos laws: search for the Los Alamos, California code of ordinances
- Santa Barbara County website: http://countyofsb.org
- Santa Barbara County laws: search for the Santa Barbara County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 21 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 37 | 100% |
Voting precincts
5 voting precincts overlap ZIP 93440. 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:93440")
ZIP 93440 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.