ZIP code 91387: Santa Clarita, CA
ZIP code 91387 is in Santa Clarita (97% of residents), in Los Angeles County, California. It is in California's 27th congressional district (81%) and California's 30th congressional district (19%). Its state senate districts are State Senate District 23 (100%) and State Senate District 20 (0.2%); its state house district is Assembly District 40.
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Santa Clarita | 97% |
| County | Share of ZIP residents |
|---|---|
| Los Angeles County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Newhall CCD | 69% |
| South Antelope Valley CCD | 31% |
| San Fernando Valley CCD | <0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| California's 27th congressional district (CA-27) | 81% |
| California's 30th congressional district (CA-30) | 19% |
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 | Jason Gibbs | 97% | |
| U.S. Representative (CA-27) | George Whitesides (D) | 202-225-1956 | 81% |
| U.S. Representative (CA-30) | Laura Friedman (D) | 202-225-4176 | 19% |
| 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% |
| State Senator (State Senate District 20) | Caroline Menjivar (Democratic) | 818-901-5588 | 0.2% |
| Assembly Member (Assembly District 40) | Pilar Schiavo (Democratic) | 661-286-1565 | 100% |
| Assembly Member (Assembly District 34) | Tom Lackey (R) | 661-267-7636 | <0.1% |
From Wikidata (community-maintained); confirm on the city's website.
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); Mayors: Wikidata (CC0).
Local government
- Santa Clarita website: http://www.santa-clarita.com
- Santa Clarita laws: search for the Santa Clarita, 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 Senate District 20 | 0.2% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 40 | 100% |
| Assembly District 34 | land only |
Voting precincts
24 voting precincts overlap ZIP 91387. 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:91387")
ZIP 91387 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.