Diamond Bar High School (DBHS) has served the city of Diamond Bar, CA since it opened in 1982, and it remains one of two comprehensive high schools in the Walnut Valley Unified School District. Families searching for “Diamond Bar High School Diamond Bar CA” or “best public high school Walnut Valley” are looking at a campus the school’s own site describes as “cosmopolitan” — more than half its roughly 2,600 students speak a language other than English at home. DBHS has appeared on U.S. News & World Report’s Best High Schools list every year from 2008 through 2026, and it was named a National Blue Ribbon School of Excellence in 2022.
This profile pulls directly from the official DBHS website (dbhs.wvusd.org) — its School Info, Principal’s Message, Leadership Team, Academies, and Awards pages — along with the school’s exact CDE School Directory record. That means the real current principal and administrative team, the school’s four named academies (Pathways Communications, Brahma Tech, IB, and Performing Arts), and its documented 2026-27 U.S. News rankings, rather than generic filler that could describe any high school.
We also cover what parents commonly search before enrolling or transferring in: how DBHS’s residency-based enrollment and non-resident permit process actually works, what academy and honors options exist beyond standard AP classes, how the school is recognized nationally, and what its WASC accreditation looks like. If you’re weighing a move to Diamond Bar or comparing high schools across the eastern San Gabriel Valley, this guide consolidates the verified facts the school itself publishes.
Basic Info
Diamond Bar High School opened in 1982 and sits in a city split between two districts — the southern portion of Diamond Bar (where DBHS is located) is served by Walnut Valley Unified, while the northern portion falls under Pomona Unified. The school’s own site describes Diamond Bar as an affluent, aging, multi-ethnic bedroom community along the 57 and 60 freeways, with a 2021 population of 53,857 and a median household income of $100,730. DBHS is registered with the California Department of Education as an active, traditional-program public high school under CDS Code 19734601932862, serving grades 9 through 12 with 2025–26 enrollment reported at 2,622 students.
| Information | Details |
|---|---|
| Official Name | Diamond Bar High School |
| Opened | 1982 |
| School District | Walnut Valley Unified School District |
| CDS Code | 19 73460 1932862 |
| Sector | Public |
| Charter Status | No |
| Status | Active |
| Grade Span | 9–12 |
| 2025–26 Enrollment | 2,622 students (per Ed-Data/CDE-sourced figures) |
| Mascot / Colors | Brahma bull / purple and gold |
| CEEB Code | 050748 |
| Athletic Leagues | Hacienda League (football); Palomares League (all other sports) |
Contact & Location
DBHS sits at 21400 Pathfinder Road in Diamond Bar, CA 91765, with office hours published as 7:30 AM to 4:00 PM, Monday through Friday. The school maintains separate fax lines for general school business and for the registrar’s office specifically, reflecting how much enrollment and records traffic the school handles. DBHS is active on Facebook, Instagram, and a dedicated Linktree, and it publishes its own student-run news outlet, the Bullsheet, alongside a student-produced video program called The Stampede.
| Information | Details |
|---|---|
| Address | 21400 Pathfinder Rd., Diamond Bar, CA 91765 |
| Phone | (909) 594-1405 |
| School Fax | (909) 595-8301 |
| Registrar Fax | (909) 444-3493 |
| Office Hours | 7:30 AM – 4:00 PM, Monday–Friday |
| Website | dbhs.wvusd.org (also accessible via dbhs.org) |
| Principal (CDE record) | Courtney Corona, ccorona@wvusd.org |
| Social Media | Facebook (@dbhsorg), Instagram (@dbhsorg), Linktree |
Academics/Curriculum
Diamond Bar High School organizes much of its advanced coursework through four named academies rather than treating AP classes as a single undifferentiated track. The Pathways Communications Academy, funded by a California Partnership Academies state grant, accepts 60 incoming sophomores each year and centers on career guidance and cooperative, applied learning. Brahma Tech Academy is a four-year STEM program built around a partnership with Project Lead the Way (PLTW), offering four career strands in engineering-related fields. The school also runs a full International Baccalaureate Diploma Programme authorized by the IB Organization for motivated juniors and seniors, plus a selective Performing Arts Academy for high-achieving artist-scholars.
| Academy/Program | Details |
|---|---|
| Pathways Communications Academy | State-grant-funded academy for grades 10–12; accepts 60 new sophomores/year |
| Brahma Tech Academy | Four-year STEM program; four career strands; partnered with Project Lead the Way (PLTW) |
| IB Diploma Programme | Full IB Diploma track for juniors/seniors; school authorized by the IB Organization |
| Performing Arts Academy | Selective smaller learning community for high-achieving artist-scholars |
| PLTW Recognition | PLTW Distinguished School: 2018, 2019, 2021, 2022, 2024, 2025, 2026 |
Admissions & Fees
As a public high school, DBHS charges no tuition, and resident enrollment for the 2026–27 school year opens January 19, 2026, with placement based on a published birthdate-to-grade-level chart aligned to California Education Code requirements. Families must first confirm their address falls within the DBHS enrollment boundary using the district’s online lookup tool before applying; those outside the boundary are directed to a separate Non-DBHS Resident Enrollment process. The online application requires an extensive document set — proof of residency, a home language survey, health assessment, and full immunization records — submitted through the district’s Aeries enrollment portal, after which the school follows up for additional documents and an in-person finalization appointment.
| Item | Details |
|---|---|
| Tuition | None — public school; residency-based enrollment |
| 2026–27 Resident Enrollment Opens | January 19, 2026 |
| Grade Placement (26–27) | Birthdate 9/2/2011–9/1/2012 = 9th grade; each prior year = next grade up through 12th |
| Application Portal | walnutvalleyusd.aeries.net/enrollment |
| Required Documents (Living w/ Parent) | Verification of Residency Form, CA ID/license, utility bill, mortgage/lease document, Home Language Survey, Health Assessment Form, proof of age, immunization records |
| Non-Resident Applicants | Must use the separate Non-DBHS Resident Enrollment process |
| Registrar | Myoung Han |
Facilities
While DBHS’s site doesn’t publish a detailed facilities inventory, its imagery and program pages point to a campus built for a wide range of specialties: dedicated lab space for its Brahma Tech Academy’s engineering and 3D-printing work, a Performing Arts wing supporting orchestra, choir, and theater productions, and swimming and water polo facilities used for competitive meets. The school also operates a dedicated Wellness Center, which won a CSBA Golden Bell Award in 2017, alongside a Health Office and library. Golf, cross country, and other outdoor sports are held at off-campus venues shared across the Hacienda and Palomares Leagues, as reflected in the school’s published athletics schedule.
| Facility/Resource | Details |
|---|---|
| Campus Address | 21400 Pathfinder Rd., Diamond Bar, CA 91765 |
| Wellness Center | Golden Bell Award winner, 2017 |
| STEM/Engineering Lab | Supports Brahma Tech Academy (3D printing, engineering projects) |
| Performing Arts Facilities | Support orchestra, choir, theater, and dance programs |
| Athletics Facilities | On-campus pool (swim/water polo); off-campus venues for golf, cross country |
| Library | On-campus library serving all students |
Staff/Leadership
DBHS’s current principal, Dr. Courtney (Breidinger) Corona, is a member of the school’s own Class of 2003 who returned to lead the campus after teaching mathematics at DBHS and West Covina High School and serving as Dean of Student Support at Glendora High School. She is supported by Assistant Principal YY Liew, Athletic Director Kurt Davies (with Brahma Nation since 2003), and three Instructional Deans — Gabriel Aguilar, Denise Loera, and Jennifer Burns — along with an Operations Manager, Activities Director, and Technology Coordinator, each with a named secretary or administrative assistant. This layered structure, published with individual staff photos on the official site, reflects a large comprehensive high school with distinct instructional, athletic, and operational leadership tracks.
| Role | Staff Member |
|---|---|
| Principal | Dr. Courtney Corona |
| Assistant Principal | YY Liew |
| Athletic Director | Kurt Davies |
| Instructional Dean | Gabriel Aguilar |
| Instructional Dean | Denise Loera |
| Instructional Dean | Jennifer Burns |
| Operations Manager | Mike Bromberg |
| Activities Director | Janna Van Horn |
| Technology Coordinator | Jeremiah Wai |
| Registrar | Myoung Han |
Community/Events
DBHS’s site names its “Magnificent Seven” parent support network directly: the Brahma Boosters, Brahma Foundation, Council of African American Parents (CAAP), Chinese American Parent Association (CAPA), Hispanic Organization for Parents and Education (HOPE), Parents of India and Neighboring Countries (PINC), and Korean American Parent Association (KAPA), reflecting the multicultural makeup of the student body described elsewhere on the site. Signature annual events include Branding Iron Week, a rivalry rally and football game tradition, and the long-running Doppelgänger Student Film Festival, now in its 17th year, run through the school’s Brahma Cinematics program. Athletics compete in the Hacienda League (football) and Palomares League (all other sports), with active fall/winter/spring seasons in football, volleyball, water polo, cross country, and golf, among others.
| Community Feature | Details |
|---|---|
| Parent Support Groups (“Magnificent Seven”) | Brahma Boosters, Brahma Foundation, CAAP, CAPA, HOPE, PINC, KAPA |
| Signature Event | Branding Iron Week (rivalry rally & football game) |
| Film Festival | Doppelgänger Student Film Festival (17th annual, run by Brahma Cinematics) |
| Student Publication | The Bullsheet (student news) |
| Student Video Program | The Stampede |
| Athletic Leagues | Hacienda League (football); Palomares League (other sports) |
Accreditation
Diamond Bar High School displays the WASC Accrediting Commission for Schools logo directly on its homepage, confirming ongoing accreditation through the Western Association of Schools and Colleges, with a dedicated WASC page linked from the school’s Info section for detailed self-study documentation. The school layers state and national recognition on top of that baseline accreditation: it is a National Blue Ribbon School of Excellence (2022), a California Distinguished School (2005 and 2026), and a Gold Ribbon School (2017), and it has appeared on U.S. News & World Report’s Best High Schools list continuously from 2008 through the 2026-27 rankings, most recently placing #66 among California high schools and #27 in the Los Angeles metro area.
| Information | Details |
|---|---|
| Accrediting Body | Western Association of Schools and Colleges (WASC) |
| National Blue Ribbon School of Excellence | 2022 |
| California Distinguished School | 2005, 2026 |
| Gold Ribbon School | 2017 |
| U.S. News Best High Schools (2026–27) | #456 National, #66 California, #27 LA Metro Area, #107 STEM High Schools |
| CDE Directory Status | Active public high school, CDS Code 19734601932862 |
Conclusion
Diamond Bar High School pairs a genuinely differentiated academic structure — four distinct academies spanning STEM, communications, IB, and performing arts — with a long, well-documented track record of national and state recognition, from consecutive U.S. News rankings since 2008 to a 2022 National Blue Ribbon School of Excellence designation. It’s a strong match for the search intent behind “Diamond Bar High School Diamond Bar CA” and “IB high school San Gabriel Valley” alike, though as a residency-zoned public school, families outside the Walnut Valley boundary should start with the district’s enrollment-area lookup tool before assuming they can apply directly.
FAQ
Is Diamond Bar High School a good school?
By nearly every published measure, yes: DBHS has appeared on U.S. News & World Report’s Best High Schools list every year from 2008 through 2026, was named a National Blue Ribbon School of Excellence in 2022, and is a repeat California Distinguished School (2005 and 2026) and Gold Ribbon School (2017). Its 2026-27 U.S. News rankings place it #66 among California high schools and #27 in the Los Angeles metro area.
How do I enroll my child at Diamond Bar High School?
First confirm your address falls within the DBHS enrollment boundary using the district’s online lookup tool. Resident enrollment for the 2026–27 school year opens January 19, 2026, and applications are submitted through the district’s Aeries enrollment portal along with proof of residency, immunization records, and other required documents. Families outside the boundary use a separate Non-DBHS Resident Enrollment process.
What academies or special programs does Diamond Bar High School offer?
DBHS offers four named academies: the Pathways Communications Academy (grant-funded, 60 new sophomores per year), Brahma Tech Academy (a four-year STEM program partnered with Project Lead the Way), a full International Baccalaureate Diploma Programme for juniors and seniors, and a selective Performing Arts Academy.
Is Diamond Bar High School WASC accredited?
Yes. The school displays the WASC Accrediting Commission for Schools recognition directly on its official website and maintains a dedicated WASC information page with its self-study documentation.
What is Diamond Bar High School’s mascot and colors?
The mascot is the Brahma bull, and the school colors are purple and gold. Students and alumni are commonly referred to as “Brahmas.”
How many students attend Diamond Bar High School?
Per CDE-sourced 2025–26 data, DBHS enrolled 2,622 students in grades 9–12, with a student-to-teacher ratio of about 23 to 1.
Where is Diamond Bar High School located?
The campus is at 21400 Pathfinder Road, Diamond Bar, CA 91765, in the southern portion of Diamond Bar served by Walnut Valley Unified School District (the city’s northern portion falls under Pomona Unified).
