ZIP code 91384: Castaic, CA
ZIP code 91384 is in Castaic (66% of residents), Val Verde (8.4%) and Hasley Canyon (4.2%), in Los Angeles County, California. 21% of its residents live outside city limits. It is in California's 26th congressional district (79%) and California's 27th congressional district (21%). Its state senate district is State Senate District 23; its state house districts are Assembly District 40 (99%) and Assembly District 34 (1.1%).
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Castaic | 66% |
| Val Verde | 8.4% |
| Hasley Canyon | 4.2% |
| County | Share of ZIP residents |
|---|---|
| Los Angeles County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Newhall CCD | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| California's 26th congressional district (CA-26) | 79% |
| California's 27th congressional district (CA-27) | 21% |
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 |
|---|---|---|---|
| U.S. Representative (CA-26) | Julia Brownley (D) | 202-225-5811 | 79% |
| U.S. Representative (CA-27) | George Whitesides (D) | 202-225-1956 | 21% |
| 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 23) | Suzette Valladares (R) | 661-729-6232 | 100% |
| Assembly Member (Assembly District 40) | Pilar Schiavo (Democratic) | 661-286-1565 | 99% |
| Assembly Member (Assembly District 34) | Tom Lackey (R) | 661-267-7636 | 1.1% |
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
- Castaic laws: search for the Castaic, California code of ordinances
- Val Verde laws: search for the Val Verde, California code of ordinances
- Hasley Canyon laws: search for the Hasley Canyon, California code of ordinances
- Los Angeles County website: https://lacounty.gov
- Los Angeles County laws: search for the Los Angeles County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 23 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 40 | 99% |
| Assembly District 34 | 1.1% |
Voting precincts
24 voting precincts overlap ZIP 91384. 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:91384")
ZIP 91384 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.