ZIP code 95023: Hollister, CA
ZIP code 95023 is in Hollister (73% of residents) and Ridgemark (5.6%), in San Benito County (100%) and Santa Clara County (0.3%), California. 21% of its residents live outside city limits. It is in California's 18th congressional district. Its state senate districts are State Senate District 17 (100%) and State Senate District 15 (0.3%); its state house districts are Assembly District 29 (100%) and Assembly District 25 (0.3%).
See it on the mapAll of California
City and county
| City or town | Share of ZIP residents |
|---|---|
| Hollister | 73% |
| Ridgemark | 5.6% |
| Tres Pinos | 0.2% |
| County | Share of ZIP residents |
|---|---|
| San Benito County | 100% |
| Santa Clara County | 0.3% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Hollister CCD | 98% |
| San Juan Bautista CCD | 1.3% |
| Diablo Range CCD | 0.3% |
| San Benito-Bitterwater CCD | <0.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| California's 18th congressional district (CA-18) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (CA-18) | Zoe Lofgren (D) | 202-225-3072 | 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 17) | John Laird (Democratic) | 831-657-6315 | 100% |
| State Senator (State Senate District 15) | Dave Cortese (Democratic) | 408-723-4154 | 0.3% |
| Assembly Member (Assembly District 29) | Robert Rivas (Democratic) | 831-759-8676 | 100% |
| Assembly Member (Assembly District 25) | Ash Kalra (Democratic) | 408-286-2535 | 0.3% |
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
- Hollister website: https://hollister.ca.gov
- Hollister laws: search for the Hollister, California code of ordinances
- Ridgemark laws: search for the Ridgemark, California code of ordinances
- San Benito County website: https://www.sanbenitocountyca.gov/
- San Benito County laws: search for the San Benito County, California code of ordinances
- Santa Clara County website: https://www.santaclaracounty.gov/
- Santa Clara County laws: search for the Santa Clara County, California code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 17 | 100% |
| State Senate District 15 | 0.3% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 29 | 100% |
| Assembly District 25 | 0.3% |
Voting precincts
33 voting precincts overlap ZIP 95023. 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://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:95023")
ZIP 95023 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.