Top 10 Public High Schools in California

Direct Answer

The Best Overall public high school in California is Gretchen Whitney High School in Cerritos, a no-tuition public magnet where 100% of seniors take at least one AP exam and the school posts a near-perfect 99% graduation rate with median SAT scores above 1400.

The Best Value pick is University High School in Irvine, a comprehensive neighborhood public school — completely free — that sends graduates to the University of California system in huge numbers while serving a full general-education population rather than a hand-selected magnet cohort.

This list is built for California families and students weighing where to attend or relocate, covering tuition-free public, magnet, and charter high schools statewide. Every pick uses real, publicly reported data from state testing, U.S. News, and district records.

How We Ranked the Top 10

We weighted each school against what California families consistently say matters when choosing a high school, drawing on published figures from U.S. News & World Report, Niche, GreatSchools, the California Department of Education (CDE), the College Board, and the National Center for Education Statistics (NCES).

The weighting:

• Academic performance (test scores, AP/IB) — 25%
• College and post-grad outcomes — 20%
• Value and cost — 15%
• Teachers and resources — 15%
• Environment and safety — 15%
• Extracurriculars and fit — 10%

A school that posts elite test scores but offers a thin slate of programs, or one that admits only top students yet stumbles on graduation, slips down the ranking. The winners balance all six.

1. Gretchen Whitney High School 🏆 BEST OVERALL

Type: Public Magnet | Tuition: Free (public) | Best for: High-achieving students who want a small, intense college-prep environment

Located in Cerritos, Los Angeles County, and part of the ABC Unified School District, Gretchen Whitney High School enrolls roughly 1,000 students across grades 7–12 and admits by competitive entrance exam. It is regularly ranked among the top public high schools in California and the nation by U.S.

News. Whitney posts an AP participation rate near 100%, with the overwhelming majority of exams scoring 3 or higher, and median SAT scores above 1400. The graduation rate sits around 99%, and the school's small size keeps the student-teacher ratio favorable.

Graduates routinely matriculate to UC Berkeley, UCLA, Stanford, and the Ivy League, and the magnet draws families from across the Gateway Cities region.

Pros:

• Near-100% AP participation with strong pass rates
• Median SAT scores above 1400
• Roughly 99% graduation rate
• Free public tuition with elite outcomes

Cons:

• Competitive entrance exam limits access
• Intense academic pressure is not for everyone

Verdict: Whitney is the complete package — elite scores, top college placement, and zero tuition make it California's standout public high school.

2. Oxford Academy

Type: Public Magnet | Tuition: Free (public) | Best for: Academically driven students in Orange County

Oxford Academy in Cypress, Orange County, part of the Anaheim Union High School District, is a tuition-free public magnet enrolling about 1,300 students in grades 7–12 by entrance exam. It consistently ranks among the highest-performing public high schools in California.

Oxford posts AP participation above 90% with strong pass rates, median SAT scores in the 1400 range, and a graduation rate near 99%. The school's college-prep culture sends graduates heavily into the University of California and Cal State systems, along with selective private universities.

Class offerings are dense in AP sciences, mathematics, and humanities, and the campus maintains a reputation for safety and academic seriousness.

Pros:

• AP participation above 90% with high pass rates
• Median SAT scores near 1400
• Roughly 99% graduation rate
• Strong UC and Cal State placement

Cons:

• Entrance-exam admission is highly competitive
• Limited athletic and arts breadth versus large comprehensives

Verdict: Oxford is Orange County's academic powerhouse — a free magnet that rivals elite privates on outcomes.

3. Lowell High School

Type: Public (Selective/Comprehensive) | Tuition: Free (public) | Best for: San Francisco students seeking a historic, rigorous public school

Lowell High School in San Francisco is one of the oldest public high schools west of the Mississippi and enrolls roughly 2,600 students, making it far larger than the top magnets. Historically admitting by academic merit, Lowell offers an exceptionally broad AP and honors catalog and posts median SAT scores well above the state average, with a graduation rate around 96–97%.

Its alumni rolls include Supreme Court justices and Nobel laureates, and graduates feed strongly into the UC system and selective nationwide universities. The scale gives students a deep menu of clubs, athletics, music, and academic competition teams that smaller magnets cannot match.

Pros:

• Broad AP and honors course catalog
• SAT scores well above state average
• Deep extracurricular and athletics breadth
• Storied alumni network and college pipeline

Cons:

• Admissions policy has shifted and drawn controversy
• Large size feels less personal than magnets

Verdict: Lowell blends history, rigor, and scale — the strongest large public high school in Northern California.

4. University High School (Irvine) 💎 BEST VALUE

Type: Public (Comprehensive) | Tuition: Free (public) | Best for: Families who want top outcomes from an open-enrollment neighborhood school

University High School in Irvine, Orange County, part of the Irvine Unified School District, is the Best Value pick because it delivers magnet-level outcomes through an open, neighborhood-enrollment model — no entrance exam, no tuition. It enrolls about 2,400 students and posts AP participation and pass rates among the highest of any comprehensive public school in the state, with median SAT scores well above 1300 and a graduation rate around 98%.

"Uni High" sends large cohorts to UC Irvine, UCLA, UC Berkeley, and UC San Diego every year. Because any family in its attendance zone gets in, the cost-to-outcome ratio is unmatched: top-tier results for the price of living in the boundary.

Pros:

• Magnet-level outcomes with open neighborhood enrollment
• AP pass rates among the best of any comprehensive school
• Roughly 98% graduation rate
• Massive UC placement at zero tuition

Cons:

• Strong results partly reflect an affluent attendance zone
• Large enrollment means competitive class spots

Verdict: Uni High is the value champion — elite results without an entrance exam or a dime of tuition.

5. Canyon Crest Academy

Type: Public (Comprehensive) | Tuition: Free (public) | Best for: STEM and arts students in San Diego County

Canyon Crest Academy in San Diego (Carmel Valley), part of the San Dieguito Union High School District, enrolls about 2,500 students and pairs strong academics with a distinctive conservatory-style arts and STEM program. The school posts AP participation above 80% with high pass rates, median SAT scores above 1300, and a graduation rate near 98%.

Its Envision arts conservatory and robust engineering and science offerings give students unusual depth in both technical and creative tracks. Graduates flow strongly into the UC system, including UC San Diego, UCLA, and Berkeley, along with top private STEM programs.

Pros:

• Distinctive Envision arts and STEM conservatory model
• AP participation above 80% with strong scores
• Median SAT above 1300
• Roughly 98% graduation rate

Cons:

• Affluent area drives some of the results
• Arts focus may not suit purely traditional students

Verdict: Canyon Crest is the creative-technical standout — ideal for students who want rigor plus a real arts or engineering track.

6. Troy High School

Type: Public (Comprehensive with Magnet Programs) | Tuition: Free (public) | Best for: Students chasing competitive STEM and academic decathlon glory

Troy High School in Fullerton, Orange County, part of the Fullerton Joint Union High School District, enrolls roughly 2,600 students and is nationally known for its Troy Tech magnet and powerhouse Academic Decathlon and Science Bowl teams. Troy posts AP participation above 80%, median SAT scores above 1300, and a graduation rate near 98%.

The school combines a large comprehensive student body with selective STEM magnet tracks, giving ambitious students access to advanced research, engineering, and competition programs. Graduates land regularly at UC Berkeley, UCLA, MIT, and Caltech.

Pros:

• Nationally ranked Academic Decathlon and Science Bowl teams
• Troy Tech STEM magnet within a comprehensive school
• AP participation above 80%
• Strong placement at top STEM universities

Cons:

• Magnet seats are competitive to secure
• Intense competition culture can be high-pressure

Verdict: Troy is the competition kingpin — unbeatable for students who thrive in academic and STEM contests.

7. Diamond Bar High School

Type: Public (Comprehensive) | Tuition: Free (public) | Best for: Families wanting a strong, well-rounded suburban public school

Diamond Bar High School in Diamond Bar, Los Angeles County, part of the Walnut Valley Unified School District, enrolls about 2,700 students and is a consistently high-performing comprehensive public school. It posts AP participation above 70% with strong pass rates, median SAT scores above 1250, and a graduation rate near 97%.

Diamond Bar offers a broad slate of AP courses, athletics, performing arts, and clubs, making it a true all-around campus rather than a narrow magnet. Graduates head in large numbers to the UC and Cal State systems, with a strong representation at UCLA and UC Irvine.

Pros:

• Broad, well-rounded academic and extracurricular menu
• AP participation above 70%
• Roughly 97% graduation rate
• Strong UC and Cal State pipeline

Cons:

• Test scores trail the elite magnets
• Large enrollment can stretch resources

Verdict: Diamond Bar is the balanced all-rounder — a strong, free comprehensive school for families who value breadth.

8. Mission San Jose High School

Type: Public (Comprehensive) | Tuition: Free (public) | Best for: Bay Area families seeking elite academics without a magnet exam

Mission San Jose High School in Fremont, Alameda County, part of the Fremont Unified School District, enrolls roughly 2,000 students and ranks among the top comprehensive public high schools in the Bay Area. It posts AP participation above 80% with very high pass rates, median SAT scores well above 1300, and a graduation rate near 98%.

The school is known for a deeply academic culture and sends graduates heavily to UC Berkeley, UCLA, Stanford, and top East Coast universities. Its open neighborhood enrollment means strong outcomes come without a competitive entrance test.

Pros:

• AP participation above 80% with high pass rates
• Median SAT well above 1300
• Roughly 98% graduation rate
• Elite Bay Area college placement, open enrollment

Cons:

• Affluent, high-pressure community
• Limited racial and economic diversity

Verdict: Mission San Jose is the Bay Area academic standout — magnet-level results from a neighborhood school.

9. Whitney High School (Rocklin)

Type: Public (Comprehensive) | Tuition: Free (public) | Best for: Sacramento-area families wanting strong academics and athletics

Whitney High School in Rocklin, Placer County, part of the Rocklin Unified School District — distinct from the Cerritos magnet — enrolls about 2,200 students and is one of the strongest comprehensive public high schools in the greater Sacramento region. It posts AP participation above 50% with solid pass rates, median SAT scores above 1200, and a graduation rate near 97%.

The school pairs a robust AP and honors catalog with competitive athletics and performing arts, giving students a genuinely well-rounded experience. Graduates flow to the UC and Cal State systems, with many heading to UC Davis and Sacramento State.

Pros:

• Strong AP and honors catalog
• Competitive athletics and performing arts
• Roughly 97% graduation rate
• Solid UC and Cal State placement

Cons:

• Test scores trail Southern California magnets
• Less name recognition outside the region

Verdict: Rocklin's Whitney is the Sacramento-region pick — a balanced, free public school strong in both academics and activities.

10. California Academy of Mathematics and Science (CAMS)

Type: Public Magnet (Charter-style) | Tuition: Free (public) | Best for: STEM-focused students in the South Bay / Long Beach area

The California Academy of Mathematics and Science (CAMS) in Carson, Los Angeles County, operates on the Cal State Dominguez Hills campus and enrolls roughly 600 students by application across multiple districts. As a small STEM-focused public magnet, it posts AP participation above 80%, median SAT scores above 1250, and a graduation rate near 99%.

CAMS partners closely with the university, giving students access to college-level math, science, and research facilities unusual for a high school. Graduates head strongly into UC engineering and science programs and Cal State STEM tracks, and the small cohort fosters a tight, collaborative culture.

Pros:

• University-campus setting with college resources
• AP participation above 80%
• Roughly 99% graduation rate
• Strong STEM and UC engineering placement

Cons:

• Narrow STEM focus limits non-science offerings
• Small size means fewer athletics and electives

Verdict: CAMS is the STEM specialist — a tiny, free magnet on a college campus for science-minded students.

Which One's Right for You?

What to Look For When Choosing a Public High School

• Test performance and AP/IB access — Compare published SAT/ACT medians, AP participation, and pass rates rather than reputation alone. Magnets like Whitney and Oxford lead, but comprehensives like Uni High and Mission San Jose match them.
• College and post-grad outcomes — Look at where graduates actually enroll, especially UC and Cal State acceptance and selective private placement, not just brochure claims.
• Admission model and access — Decide whether you can take an entrance exam for a magnet or need an open neighborhood-enrollment school in a strong attendance zone.
• Resources and class size — Check the student-teacher ratio, counseling support, and lab and arts facilities; small magnets offer intimacy, large comprehensives offer breadth.
• Environment and safety — Review GreatSchools and CDE safety and climate data, plus parent reviews on Niche.
• Extracurricular fit — Confirm the school offers the athletics, arts, or competition programs your student actually wants.

What matters less than marketing implies: glossy facility tours, a single year's national ranking, and headline AP course counts. A school's graduation rate, college placement, and class-size data tell you far more about real outcomes than a banner number.

FAQ

Which is the best public high school in California? Gretchen Whitney High School in Cerritos earns our top spot, with near-100% AP participation, median SAT scores above 1400, and a graduation rate around 99% — all tuition-free.

What is the best-value public high school in California? University High School in Irvine is our value pick: it delivers magnet-level outcomes and heavy UC placement through open neighborhood enrollment with no entrance exam and no tuition.

Do California's top public high schools cost money? No. Every school on this list is a tuition-free public, magnet, or charter school. The only "cost" for a comprehensive school like Uni High or Mission San Jose is living within its attendance boundary.

Which California public high schools require an entrance exam? Magnets such as Gretchen Whitney, Oxford Academy, CAMS, and the Troy Tech magnet admit by competitive application or exam, while schools like University High, Mission San Jose, and Diamond Bar use open neighborhood enrollment.

Which California public high schools are best for STEM? Troy High School, Canyon Crest Academy, and the California Academy of Mathematics and Science (CAMS) stand out for engineering, science competition teams, and university-level STEM resources.

How do I compare California public high schools fairly? Cross-check U.S. News rankings, Niche grades, GreatSchools ratings, and California Department of Education data for test scores, graduation rates, and AP participation, then weigh them against admission access and your student's program needs.

Bottom Line

For California families, Gretchen Whitney High School is our Best Overall public high school — a tuition-free Cerritos magnet with near-100% AP participation, SAT medians above 1400, and a 99% graduation rate. University High School in Irvine is our Best Value, delivering magnet-level outcomes and massive UC placement through open neighborhood enrollment at zero tuition.

If your priorities lean toward STEM, the arts, a specific region, or open versus exam-based admission, use the decision tree above to route yourself to Oxford, Lowell, Troy, Canyon Crest, Mission San Jose, Diamond Bar, Whitney Rocklin, or CAMS. Choose on test data, college outcomes, and admission access — not a single year's ranking — and your student will land somewhere that fits.

Sources

• U.S. News — Best High Schools in California
• Niche — Best Public High Schools in California
• GreatSchools — California school ratings
• California Department of Education (CDE) — DataQuest
• College Board — AP and SAT program data
• NCES — National Center for Education Statistics school search
• ABC Unified School District — Gretchen Whitney High School
• Irvine Unified School District — University High School
• San Dieguito Union — Canyon Crest Academy
• Fullerton Joint Union — Troy High School

*Public high schools in California review — best public high schools California, rankings, ratings, and a review of the top tuition-free picks for families.*