Fullerton Union High School is a historic high school that represents 'Fullerton' as its name suggests.

It is located near downtown Fullerton. Established in 1893, Fullerton Union High School is one of the oldest high schools in Orange County, boasting over 130 years of history.

As a school under FJUHSD, it has a lower academic ranking compared to Troy and Sunny Hills, but its historical tradition, accessibility to downtown, and various arts and vocational education programs are its strengths. The list of alumni includes many notable figures, making it a school deeply connected to the community.

The student body at Fullerton Union High School shows diversity with a mix of Hispanic, White, and Asian students. The total student population is around 2,500 to 3,000, and due to its location, students from various backgrounds gather around downtown Fullerton.

AP courses are offered, and there are math and science-focused programs, but the school's standout strengths are in the arts (performing arts, visual arts), music, and Career Technical Education (CTE) programs. As Fullerton is a music city, the school band and choir have a tradition of participating in local music events.

Fullerton Union High School also has an active sports program. It participates in the Orange County high school sports league in major sports such as football, basketball, baseball, track and field, and swimming, showing county-level competitiveness in certain sports.

The school mascot is the Indians, symbolizing a long historical identity. It also offers extracurricular activities such as student government, various clubs, and volunteer programs, providing growth opportunities outside of academics.

For Korean families, Fullerton Union High School may be a better fit for students seeking a more relaxed high school experience compared to Troy or Sunny Hills, as it has a lower academic competition level. Its proximity to downtown makes it convenient to access libraries, cafes, and restaurants after school, and Fullerton train station is within walking distance, making transportation easy.

With CSUF nearby, there is also the advantage of experiencing a college atmosphere early on. If residing in the school district, it is important to set a direction between AP or CTE courses based on the child's goals and learning style, and it is recommended to have early career counseling with the school counselor after enrollment.