A family looking for a home in Fullerton was confused about one aspect. The property listing showed a single elementary school district, but when it came to high school, a completely different district name appeared. Understanding why this division exists can reduce confusion.

To put it simply, Fullerton has separate districts: the Fullerton Elementary School District for elementary schools and the Fullerton Joint Union High School District for middle and high schools. This structure, where elementary and secondary school districts are separate, is common in many cities in California.

In numbers, it looks like this. Sunny Hills High School and Troy High School have a GreatSchools rating of 10, while Fullerton Union High School has a rating of 8. On the elementary side, Robert C. Fisler Elementary School and Beechwood Elementary School both have a rating of 10, while Raymond Elementary School and Golden Hill School for Creative and Performing Arts each have a rating of 8. These figures were confirmed in August 2026. In contrast, the average rating for all 20 schools in the Fullerton Elementary School District is reported to be 5.4.

This difference can create confusion. While the overall average for the district may seem low, a specific school of interest could have a rating of 10. If the terminology is unfamiliar, think of it this way: a district is a large group of several schools, and what we need to check is the individual school assigned to our address within that group.

So how is the GreatSchools score calculated? It is derived from a weighted average of four categories: test scores, student growth, college readiness, and equity. According to GreatSchools' official methodology, the higher of the test scores or growth accounts for 0.45 of the weight, while the other categories each account for 0.27. Here, the overall district and individual schools are calculated separately.

When Korean families choose a home in Fullerton, it is necessary to check the elementary and high school districts separately on different district websites. Relying on just one district name can lead to being assigned to a different school than expected at another stage.

After checking the scores, it is also advisable to look at the student-to-teacher ratio, recent grade trends, and reviews from current parents. Especially in cases where there is a significant difference between the district average and the individual school scores, it is important to take another look at the district data to understand the reasons behind it.

• Have you checked the elementary and high school districts separately?
• Did you look at the individual scores of the assigned school rather than the overall district average?
• Have you checked the student-to-teacher ratio and grade trends?
• Did you refer to reviews from current parents?

Rather than judging by just one district name, it becomes much clearer when you break down which individual schools are actually included within it.

To elaborate a bit more, the reason the district average may appear low is that there are various levels of schools mixed within the district. The characteristic of an average number is that it can obscure the variations, so if you do not check the individual school assigned to your address, you may get a misleading impression.

For those coming from out of state, one more explanation: California property taxes are determined based on the purchase price and have a cap on the annual increase. This is different from the calculation methods used in other states, so familiarizing yourself with it can help when budgeting.

This article is not investment or legal advice, and it is recommended to verify the assigned school with a real estate professional before finalizing any contracts.