San Benito is a county in California, United States, in the Gabilan and Diablo ranges southeast of the San Francisco Bay Area. It had a population of 64,209 at the 2020 census and covers 1,390 square miles (3,600 km2) centred near 36°37′N 121°05′W.
Hollister is the county seat, and its postal code is 95023. The county has 2 incorporated cities and a handful of unincorporated communities, no civil townships. San Benito is in the Pacific time zone and carries FIPS code 06-069.
Towns & Villages in San Benito County
San Benito County has just two incorporated cities — Hollister and San Juan Bautista — and a wider scatter of unincorporated communities and CDPs across its rural interior. The table below marks each place’s status: City for an incorporated municipality, CDP for a Census Bureau-recognized unincorporated place, and Unincorp. for a settlement with no formal boundary.
| Place | Type | Pop. | ZIP |
|---|---|---|---|
| Hollister | City · seat | 41,678 | 95023 |
| San Juan Bautista | City | 2,089 | 95045 |
| Aromas | CDP | — | 95004 |
| Ridgemark | CDP | — | 95023 |
| San Benito | CDP | — | 95023 |
| Tres Pinos | Unincorp. | — | 95075 |
| Paicines | Unincorp. | — | 95043 |
| Panoche | Unincorp. | — | — |
| Bitterwater | Unincorp. | — | — |
| Idria | Unincorp. | — | — |
| Llanada | Unincorp. | — | — |
| Logan | Unincorp. | — | — |
| River Oaks | Unincorp. | — | — |
| Pinnacles | Unincorp. | — | — |
Aromas straddles the San Benito–Monterey county line; most of its housing sits on the Monterey side, but its ZIP code and school district reach into San Benito County. Idria, once the New Idria mercury-mining camp, is now largely abandoned. Cottage Corners, Dunneville, Hudner and Morse from older gazetteers are informal rural crossroads rather than distinct census places and are omitted here for lack of verifiable current data.
ZIP Codes
- 95023 — Hollister (also serves Ridgemark and San Benito)
- 95045 — San Juan Bautista
- 95004 — Aromas (shared with Monterey County)
- 95043 — Paicines
- 95075 — Tres Pinos
Bitterwater, Idria, Llanada, Logan, Panoche, River Oaks and Pinnacles are small enough that mail is typically routed through Hollister’s 95023 rather than a dedicated code.
Geography
San Benito County spans rugged coast-range terrain, from the Diablo Range’s Panoche Hills in the east to the Gabilan Range along its western edge, with the San Benito River valley running through the middle. The county contains most of Pinnacles National Park, formed from the eroded remains of an extinct volcano, and is the source of benitoite, California’s official state gem, first found in the New Idria mining district. Bordering counties are Santa Clara to the north, Santa Cruz to the northwest, Monterey to the west and south, Fresno to the east and Merced to the northeast.
Demographics
San Benito County counted 64,209 residents at the 2020 census, concentrated overwhelmingly in Hollister (41,678) and San Juan Bautista (2,089), with the rest spread across rural unincorporated land. Median household income runs well above the California median of $95,521, driven by Hollister’s growth as a Bay Area commuter town. Overall density is light for California, around 46 people per square mile, reflecting the county’s largely agricultural and rangeland interior.
Economy & Local Life
Agriculture anchors the local economy — row crops, wine grapes and cattle ranching dominate the valleys, alongside a growing wine industry centred near San Benito and Cienega Valley. Hollister has drawn Bay Area commuters and light manufacturing as housing costs push growth south from Santa Clara County. The county is well known among motorcyclists and off-roaders for the Hollister Hills State Vehicular Recreation Area, and San Juan Bautista’s mission and historic plaza draw regular day-trip visitors.
History
San Benito County was created in 1874 out of the southern portion of Monterey County, with Hollister named the new county seat. The name comes from the San Benito River, named by Spanish missionary Father Juan Crespi in 1772 for Saint Benedict. San Juan Bautista, home to Mission San Juan Bautista founded in 1797, predates the county itself and sits directly on the San Andreas Fault. The county has drawn national attention as a bellwether in California presidential elections.
Getting There
U.S. Route 101 skirts the county’s northwest corner near San Juan Bautista, with State Routes 25, 129, 146 and 156 carrying most through-traffic to Hollister and the county interior.
- Gilroy — 12 miles north
- Salinas — 25 miles west
- San Jose — 45 miles north
- Monterey — 45 miles southwest
Hollister Municipal Airport serves general aviation; the nearest commercial airport is San Jose Mineta International, roughly an hour’s drive north.
Frequently Asked Questions
Where is San Benito County?
It lies in central California’s coast ranges, southeast of the San Francisco Bay Area, between Santa Clara and Monterey counties.
What is the population of San Benito County?
64,209 at the 2020 census.
How big is San Benito County?
1,390 square miles (3,600 km2), one of California’s larger but least densely populated counties.
What is the county seat of San Benito County?
Hollister, the county’s largest city.
How many towns are in San Benito County?
Two incorporated cities, Hollister and San Juan Bautista, plus around a dozen smaller unincorporated communities.
What ZIP codes are in San Benito County?
Mainly 95023 (Hollister), 95045 (San Juan Bautista), 95043 (Paicines) and 95075 (Tres Pinos).
What is San Benito County known for?
Pinnacles National Park, the New Idria mercury-mining district and benitoite, California’s official state gem.
More counties in this state: Towns and villages in California.