California has roughly a dozen college-preparatory boarding schools, led by The Thacher School, Cate School, Webb Schools, and Stevenson School. Boarding tuition runs $65,000–$78,000 per year in 2026. The top California schools match East Coast peers on selectivity and college placement; the state simply offers fewer options.
Key facts about California boarding schools
- California has roughly a dozen college-prep boarding schools — the largest cluster west of the Mississippi.
- Boarding tuition runs $65,000–$78,000 per year for 2025–26.
- Thacher and Cate are the most selective, admitting roughly 20% of applicants.
- Thacher requires every freshman to care for a horse — the country’s best-known school horse program.
- Webb Schools operates the only accredited paleontology museum on a US secondary school campus.
Which are the top boarding schools in California?
| School | Town | Grades | Boarding tuition | Known for |
|---|---|---|---|---|
| The Thacher School | Ojai | 9–12 | ~$72,000 | Horse program; wilderness curriculum |
| Cate School | Carpinteria | 9–12 | ~$73,000 | Mesa campus above the Pacific |
| The Webb Schools | Claremont | 9–12 | ~$76,000 | Alf Museum of Paleontology; parallel single-sex schools |
| Stevenson School | Pebble Beach | 9–12 | ~$78,000 | Golf and marine science |
| Besant Hill School | Ojai | 9–12, PG | ~$68,000 | Arts focus; small enrollment |
| Dunn School | Los Olivos | 9–12 | ~$70,000 | Academic support programs |
| Idyllwild Arts Academy | Idyllwild | 9–12, PG | ~$78,000 | Pre-professional arts conservatory |
| Army and Navy Academy | Carlsbad | 7–12 (boys) | ~$52,000 | Military structure; oceanfront campus |
| Chadwick School | Palos Verdes | 9–12 (limited boarding) | ~$60,000 | Primarily day with small boarding cohort |
What makes California boarding different?
California boarding schools lean on climate and geography in ways East Coast schools cannot: year-round outdoor athletics, wilderness and marine programs, and campuses on ranches, mesas, and coastline. Thacher’s horse program and Webb’s working paleontology museum are genuinely distinctive curricula, not marketing.
The practical trade-off is scale. With about a dozen schools, a California-only list cannot span selectivity tiers the way a New England list can — most families applying to Thacher and Cate should include East Coast or accessible-tier schools as well. See acceptance rates for tier planning.
Specialty options in California
Two California schools serve needs that general prep schools do not: Idyllwild Arts Academy is one of the few US pre-professional arts boarding schools, and Army and Navy Academy in Carlsbad is the West Coast’s main military boarding school. Dunn School in Los Olivos maintains structured academic support for students who need it — compare with boarding schools for learning differences.
Explore other states in best boarding schools by state and nationally in the best US boarding schools.
California boarding school FAQ
What is the best boarding school in California?
The Thacher School in Ojai is generally considered California's top boarding school, admitting roughly 20% of applicants. It is known for its horse program, in which every freshman cares for a horse, and its wilderness curriculum. Cate School in Carpinteria is comparably selective.
How much do California boarding schools cost?
California boarding schools charge $65,000–$78,000 per year for boarding in 2025–26 — slightly above the national average, reflecting the state's cost base. Thacher runs approximately $72,000 and Cate approximately $73,000. Need-based aid follows the same SSS/PFS process used nationally.
How many boarding schools are in California?
California has roughly a dozen college-preparatory boarding schools — far fewer than New England despite a much larger population, because California's strong public schools and later statehood meant fewer 19th-century residential academies were founded.
Are California boarding schools as good as East Coast ones?
The top California schools — Thacher, Cate, Webb — post college matriculation records comparable to strong East Coast schools and admit at similar rates. The difference is quantity, not quality: California offers about a dozen options where Massachusetts and Connecticut offer dozens.
Sources
- The Thacher School, Cate School, The Webb Schools: published tuition and admission data.
- TABS: California member directory.
- California Association of Independent Schools (CAIS): state school listings.