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Fullerton high schools are part of the Fullerton Joint Union High School District. This grades 9–12 district runs eight campuses across several North Orange County cities. Three of them sit inside Fullerton itself: Fullerton Union, Sunny Hills, and Troy. Each home is assigned to one school by attendance boundary, and the district’s official locator confirms that school by address.
Fullerton high school district and program details verified as of July 8, 2026. Analysis by Michael Mellgren, REALTOR® (DRE #02321556).
Which high school district serves Fullerton?
The Fullerton Joint Union High School District (FJUHSD) serves Fullerton for grades 9 through 12. It is a high-school-only district, so it also covers La Habra, Buena Park, and nearby areas. The younger grades fall under separate elementary and middle-school districts. So a family checks the high school separately from the elementary school for the same address.
In total, the district runs eight schools. Three comprehensive campuses sit in Fullerton: Fullerton Union, Sunny Hills, and Troy. Three more serve other cities: Buena Park, La Habra, and Sonora. Beyond those six, it also runs La Vista and La Sierra for continuation and alternative programs. It adds iSierra Online Academy as well.
How do Fullerton high school attendance boundaries work?
Attendance boundaries assign each Fullerton address to one school of residence. The zoned high school depends on where a home sits, not on its neighborhood name. Because the lines follow specific streets, two nearby homes can feed different schools. The district draws these lines and updates them, and it is the only authority on where an address lands.
An address near a city or district edge deserves a direct check. Homes at the margins of Fullerton sometimes attend another FJUHSD campus, such as Buena Park or Sonora. To be sure, families can confirm the school of residence through the district’s official school-locator tool. The district also asks anyone on or near a boundary line to call and verify.
A few other paths exist too. They include open enrollment, intra-district and inter-district transfer permits, and applications to specific academic programs. Each one depends on district rules and open space. For that reason, families weighing them should start with the district.
Which high schools are in Fullerton?
Three comprehensive FJUHSD high schools sit within Fullerton: Fullerton Union, Sunny Hills, and Troy. Each school publishes its own program list, and the details below come straight from the schools and the district. None of this ranks the campuses. It simply describes what each one offers.
Fullerton Union High School
Fullerton Union High School sits at 201 East Chapman Avenue. Founded in 1893, it is the oldest campus in the district. It offers the International Baccalaureate (IB) Diploma Programme, Advanced Placement (AP) courses, and the AVID college-readiness program. Its specialized pathways cover several fields too. They include an Academy of the Arts for visual and performing arts, an Agri-Science Academy, a Culinary Arts Academy, and JROTC.
Sunny Hills High School
Sunny Hills High School is located at 1801 Lancer Way in western Fullerton. It is an authorized International Baccalaureate World School and has offered the IB programme since the 1980s. The campus also provides AP courses, the AVID program, and a range of honors pathways.
Troy High School
Troy High School stands at 2200 East Dorothy Lane, next to California State University, Fullerton. It is home to Troy Tech, a four-year STEM magnet program. Troy Tech began in 1986 and was the first magnet program in Orange County. The school also offers the IB and Cambridge programmes, plus AP and AVID.
What programs do Fullerton high schools offer?
The three Fullerton high schools share a college-prep core and add their own specialized programs on top of it. AP and AVID run across the district. The IB programme is offered at Fullerton Union, Sunny Hills, and Troy. The table below lists each campus and its notable programs, as published by the schools.
| School | Location in Fullerton | College-prep programs | Notable specialized programs |
|---|---|---|---|
| Fullerton Union High School | 201 East Chapman Avenue | IB Diploma, AP, AVID | Academy of the Arts, Agri-Science Academy, Culinary Arts Academy, JROTC |
| Sunny Hills High School | 1801 Lancer Way | IB Diploma, AP, AVID, honors pathways | International Baccalaureate World School since the 1980s |
| Troy High School | 2200 East Dorothy Lane | IB Diploma, Cambridge, AP, AVID | Troy Tech, a four-year STEM magnet founded in 1986 |
Fullerton high schools and their published programs, Fullerton Joint Union High School District, verified July 2026. Source: FJUHSD and individual school program pages; compiled by Michael Mellgren, REALTOR®.
Families who want published performance data can find it at the state level. The California School Dashboard and each school’s School Accountability Report Card (SARC) report the numbers directly. They cover test results, graduation rates, and other measures. These official sources let a family review a Fullerton high school and draw its own conclusions.
Frequently asked questions about Fullerton high schools
What high school district is Fullerton in?
Fullerton sits in the Fullerton Joint Union High School District for grades 9 through 12. The same district also covers La Habra, Buena Park, and nearby communities. So it is shared across several North Orange County cities, not unique to Fullerton.
How do I find out which Fullerton high school my address is assigned to?
The district publishes an official school locator. It returns the assigned school of residence for any address. Still, boundary lines can run mid-block. For that reason, the district recommends calling its office to confirm any home near a boundary.
Do all Fullerton high schools offer the IB program?
Among the three high schools inside Fullerton, IB is offered at Fullerton Union, Sunny Hills, and Troy. AP and AVID are available district-wide. Troy also offers the Cambridge programme alongside its Troy Tech STEM magnet.
Can a student attend a Fullerton high school outside the assigned boundary?
Sometimes, yes. The routes include open enrollment, an intra-district or inter-district transfer permit, or an application to a specific academic program. Each one depends on district rules and open space. Families should confirm current options with the district before counting on a placement.
Where can I check published performance data for Fullerton high schools?
Two official sources carry it: the California School Dashboard and each school’s School Accountability Report Card. Both report state-collected measures for every Fullerton high school. That lets families review the same underlying data instead of a third-party ranking.
Confirm the assigned school for a specific Fullerton address
Attendance boundaries are set by address, not by neighborhood. So the zoned high school can change from one Fullerton street to the next. That detail matters to anyone weighing a specific home around a particular school or program.
For local market context, see Fullerton’s June 2026 home sales and the Fullerton housing market in Q2 2026. If a property has added-unit potential, review Fullerton’s ADU rules as well.
Michael Mellgren, REALTOR®, can confirm the assigned school of residence for any Fullerton address. He can also walk through the district’s program options. Email Michael Mellgren about a Fullerton high school boundary, or call or text (714) 420-6629. Then verify current boundaries, enrollment steps, and program details directly with the Fullerton Joint Union High School District before deciding.
