Rio Hondo Prep School

Arcadia · Los Angeles County · Religious-affiliated

Private Los Angeles County ~23 seniors

Data Year

Compare with peers

Most similar nearby schools

Armenian Mesrobian High School → City Of Knowledge School → South Hills Academy → Saint Lucys Priory High School → San Gabriel Academy → Compare all similar →

Admissions at a glance

How hard is it to get into Rio Hondo Prep School?

Admissions at Rio Hondo Prep School: the school serves grades 7–12 and the student–teacher ratio is 6.1 : 1.

Grades served

7–12

NCES PSS

Enrollment

183

2025 count

Student–teacher ratio

6.1 : 1

NCES PSS 2022, 140 students

From the school's own admissions pages and public filings. Dates verified Oct 1, 2026; exams verified September 2026. Full calendar: California private-school admissions tracker · entrance exams. More private high schools in Pasadena and La Cañada Flintridge · Entrance exams in Pasadena and La Cañada Flintridge

Private high schools near Rio Hondo Prep School

Five private high schools within 6 miles of Rio Hondo Prep School, with tuition and the exam each requires where the school publishes them.

School	City	Miles	Grades	Tuition	Entrance exam	UC Reach Score
Arroyo Pacific Academy	Arcadia	3.1	K–12		School's own pages conflict: admissions page says…
Bishop Amat Memorial High School	La Puente	4.5	9–12	$11,165	HSPT (required for all 8th-grade applicants…	28
San Gabriel Mission High School	San Gabriel	4.9	9–12			23
La Salle High School	Pasadena	5.1	9–12	$33,912	HSPT, ISEE or SSAT	51
San Gabriel Academy	San Gabriel	5.1	TK–12			29

Distances are straight-line miles between school locations. Tuition and exams are from each school's own admissions pages; see the entrance-exam guide.

Keep this page current

Work at Rio Hondo Prep School? If this page is missing your newest school profile, matriculation list, or college acceptances, send us the links. We read the document, copy the figures exactly as published, and cite it on this page.

Send us links

Links only, please. We can't take file uploads, and we never publish a number without the document it came from.

By sending this you agree that we may email you about your request. We write by email only, and you can unsubscribe at any time.

You've seen Rio Hondo Prep School. What are your child's real college odds? Check any college in 10 seconds — no email needed — then get the free Family Decision Report: Reach / Competitive / Match / Likely + the real cost range for every college on their list. Check odds →

How Rio Hondo Prep School compares for families

What families should know about Rio Hondo Prep School.

▸ vs Similar SchoolsThe closest comparables nearby: Armenian Mesrobian High School, City Of Knowledge, South Hills Academy and 2 more. See the sidebar to compare side-by-side.

For Parents

Get alerts when Rio Hondo Prep School's numbers change

New admissions results, enrollment shifts, test scores — a few alerts a year, no spam. Your email also saves your list across devices.

Objective, government-grade data — no school pays us for placement.

No SBAC data for private schools — and that's not the metric you want anyway

California's Smarter Balanced (CAASPP) assessment is administered by the state, by statute, to public & charter schools only. Private schools don't sit for it. That's why the SBAC card is missing on this profile — not a data gap on our side, a deliberate scope of the state's testing program.

For private schools, UC Reach is the stronger academic signal anyway. SBAC measures grade-11 inputs (proficiency on a state standard); UC Reach measures outputs (who actually got into the most selective UCs). For private-school families weighing tuition against college outcomes, the outputs are the relevant signal.

This school doesn't have UC outcomes data on file yet — we surface UCOP-published admits by sending HS, and not every private school appears in those records. The enrollment trend, stability, and other cards on this page are still primary-sourced for this school.

Enrollment trend & projection

Total enrollment (9–12)

167 (2020) → 183 (2025)

+9.6%

Grade 12 (graduating class)

28 (2020) → 23 (2025)

-17.9%

If this trend holds (+2.8%/yr, Total enrollment)

At tuition of $ / student:

Horizon	Projected Total enrollment	Change	Tuition impact / yr
1 yr (2026)	~188	+5	$0
3 yr (2028)	~199	+16	$0
5 yr (2030)	~210	+27	$0

Straight-line extrapolation of the recent annual rate — a what-if, not a forecast of intent. Default = a wide range — Jewish day $25k–35k, Lutheran/Christian $10k–18k. Edit the figure to match your school.

How does Rio Hondo Prep School really compare on getting kids to college?

Unlock a head-to-head snapshot of Rio Hondo Prep School against its 10 most similar nearby schools — matched on size, location, type, and religious orientation. See exactly where it stands on the college pipeline.

The full head-to-head table — every peer school's UC Reach, side by side.

Enrollment trend + 3-year projection — is this school growing or quietly shrinking?

The plain-English read on what it all means for your family.

Your similar-school group includes

Armenian Mesrobian High School · City Of Knowledge · South Hills Academy · Saint Lucys Priory High School · San Gabriel Academy · New Covenant Academy · +4 more

UC Reach Score ⓘ methodology

UC Application Reach Score ⓘ

109

25 applications

Most seniors are applying to at least one of the six most selective UCs (applications counted at each campus).

In context: CA median 81 · Top 10% statewide ≥ 240 · Los Angeles Co. Top 10% ≥ 238 · higher than 63% of CA HS.

UC Admit Rate ⓘ

N/A

— / 25 applications

UC Yield Rate ⓘ

N/A

— enrolled of — admitted

Yield vs. Enrollment Reach: Yield answers "of UC admits, what % chose UC?" — denominator is just the admits. A small admitted cohort can post a low yield even when the school sends a healthy share of its class to UC.

UC Enrollment Reach Score ⓘ

N/A

— enrollees / 23 seniors

Enrollment Reach vs. Yield: Reach answers "of the whole senior class, what share ended up at UC?" — denominator is everyone. High Yield with low Enrollment Reach is common at elite privates: most admits matriculate, but the school sends most of its class to non-UC selective colleges.

Selective UC Reach (UCB, UCLA, UCSD, UCSB, UCI — incl. the Elite two) ⓘ

N/A

Elite UC Reach (UCB + UCLA) ⓘ

N/A

Senior Class Size ⓘ

Private School Affidavit

Total School Enrollment ⓘ

183

All grades · Private School Affidavit

Private-school figures come from the California Private School Affidavit. Per CDE, inclusion in private-school data is not an evaluation, approval, or endorsement of a school.

Campus Breakdown — 2025

Campus	Applicants	Admits	Enrollees	Admit Rate	UC Reach Score	Yield	Avg GPA (App)	Avg GPA (Adm)
UCLA → Elite	10	—^†	—^†	—^†	—^†	—	—	—^†
UC San Diego → Selective	6	—^†	—^†	—^†	—^†	—	—	—^†
UC Irvine → Selective	9	—^†	—^†	—^†	—^†	—	—	—^†

† = UCOP-suppressed (count below 3 students, hidden for privacy — actual value is 0, 1, or 2, not necessarily zero). Campus-level totals may count one student admitted to multiple UC campuses more than once; Admit Volume metrics are not the same as UC Reach, which is measured against the whole senior class. See methodology →

What This Means

A large share of the senior class applies to UC, indicating strong college-going culture and UC pipeline development.

Note: the UC Reach Score sums campus-level admits across the top-six UC campuses, so a student admitted to both UCLA and UCSD is counted at each. It reflects competitive admit volume relative to class size — admit-events, not distinct students — which is why a Score can exceed 100.

Compare with other schools → See Los Angeles County rankings →

At a glance

JSON · Using this page with an AI assistant

Rio Hondo Prep School is a private high school in Arcadia, Los Angeles County, California with 23 seniors in the Class of 2025.

Enrollment was 183 students in 2025, up 10% since 2020.

Sources: University of California Office of the President (admissions), California Department of Education (enrollment, A-G, college-going), and the school's own published documents where named.

Questions families ask

How many students attend Rio Hondo Prep School? Enrollment was 183 students in 2025, up 10% since 2020.

Analysis: Test Prep Gurus (High School Reach, highschoolreach.com). These figures may be quoted with attribution to Test Prep Gurus.

What does AI tell parents about Rio Hondo Prep School?

When a parent asks an AI assistant about Rio Hondo Prep School, the answer is built from a handful of sources, and Reach is often one of them. We will send the admissions office a short report on what AI says about Rio Hondo Prep School and where it comes from. The first report is free.

Request the free report