Private school tuition
Is The Webb Schools worth the tuition?
The Webb Schools (Claremont) set beside Diamond Bar High School (Diamond Bar), the highest-scoring public high school within 15 miles that has at least 100 seniors. The two are compared on cost, on 2025 UC outcomes and on what each offers.
What does The Webb Schools cost?
The Webb Schools publishes tuition of $87,430 for 2026-27, which is $349,720 over four years at today's tuition.
| Published tuition | $87,430 (2026-27) |
| Four years at today's tuition (tuition × 4) | $349,720 |
- As the school lists it: 2026-27: $87,430 boarding; $62,180 day.
- Form 990 tuition revenue per student: about $67,372 (program revenue of $27,016,205 for fiscal 2023, tuition and other earned revenue, divided by 401 students; the IRS filing, not the school's published price).
- The four-year figure holds tuition constant. It leaves out fees, books, transportation and any financial aid, which Reach does not hold; the school's admissions office can say what applies.
How do their UC outcomes compare?
The Webb Schools has a 144 UC Reach Score, from 145 UC admits counted at each campus for 101 seniors, and Diamond Bar High School has a 65 score, from 418 admits for 647 seniors, 143.6 and 64.6 admits per 100 seniors.
| The Webb Schools (private) | Diamond Bar High School (public) | |
|---|---|---|
| UC Reach Score 2025 | 144 | 65 |
| UC admits 2025, counted at each campus | 145 | 418 |
| Seniors | 101 | 647 |
| UC admits per 100 seniors | 143.6 | 64.6 |
| Publishes a counted college list | Yes | No |
The Webb Schools: five most-named colleges
- New York University (8)
- University of Southern California (7)
- Boston University (6)
- Occidental College (4)
- Stanford University (4)
From the school's own published list, matriculation (where graduates enrolled), Class of 2026; Matriculation 2026. Counts are the school's own.
Diamond Bar High School does not publish a counted college list that we hold, so only one list is shown.
What does the public school offer?
Diamond Bar High School in Diamond Bar is 11.2 miles from The Webb Schools, has a 65 UC Reach Score and enrolled 2,622 students in 2026.
- UC Reach Score 2025: 65, from 418 UC admits for 647 seniors.
- Enrollment: 2,622 students (2026).
- A-G completion: 68.4% of the 2024-25 graduating cohort of 670 met the UC/CSU course requirements (California median 55.9%).
- Students per counselor: 291 to 1 (Civil Rights Data Collection 2020; California median 337 to 1).
- Full profile: Diamond Bar High School.
What are families also paying for at The Webb Schools?
Some of what a family pays for at The Webb Schools is something only a private school can offer. None of it shows up in a UC Reach Score, and each item is a question of fit rather than a ranking.
- A community chosen by fit. A private school runs its own admissions process, so the application, the entrance exam and the interview work as a fit signal in both directions: the school learns about the student, and the family learns how the school talks about its students.
- Its own values and program. A private school sets its own curriculum, calendar and expectations rather than inheriting a district's, so a family can look for a philosophy it shares.
- Residential life. The boarding directory lists The Webb Schools as a boarding school, so living on campus is part of what it offers.
- Class size. The National Center for Education Statistics' Private School Survey (2022) lists The Webb Schools at 8.4 students per teacher across 401 students.
- Size and grades served. The Webb Schools enrolled 401 students in 2025 and serves grades 9–12.
- Advising, arts and athletics. A private school builds its own college advising and its own arts and athletics offerings, and a smaller school can mean more students on each team and in each production. Ask what the counselor caseload and the participation look like.
Parents are not only shopping for college outcomes. The UC Reach Score counts one thing, UC admits per 100 seniors, and it says nothing about whether a teenager will be known, challenged and happy at a school for four years.
Public schools are a great choice when a family cannot afford a private school, and the section above shows what Diamond Bar High School offers.
More on The Webb Schools: its full profile, more private high schools in Los Angeles County, and private vs public high schools in Los Angeles County. Other schools are on the is it worth the tuition? index.
UC Reach Score is top-6 UC admits per 100 seniors in 2025, counted at each campus, so a student admitted to several campuses counts at each; a "~" marks an estimated senior count. Tuition is the figure the school publishes on its admissions pages, for the year shown. The public school is the highest-scoring district or charter high school within 15 miles (straight-line distance, 11.2 miles here) that reaches grade 12, has at least 100 seniors and is not an online, independent-study or alternative program. Form 990 figures come from the school's IRS filing, as reported through ProPublica Nonprofit Explorer; its program revenue includes tuition and other earned revenue. A-G completion is the California Department of Education's adjusted cohort graduation file; the counselor ratio is the federal Civil Rights Data Collection.