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Colton Joint Unified


At a glance
1245thof 1,543 California districts▼ 39
Better than 19% of California districts
1212 Valencia Dr.
Colton, CA 92324-1798
·(909) 580-5000·All California district rankings →
Statewide performance 2017–2025
2025: better than 19.3% of districts
28
Schools
18,397
Students
Top rankedRuth Grimes Elementary2523rd of 5,857 California elementary schools
Biggest riser
Crestmore Elementary up 456 spots statewide this year
Smallest classes
Washington High 7.4 students per teacher
SchoolDigger ratings
3★
2★
1★
2 schools without a SchoolDigger rating (too few tested students)
Summary:

The Colton Joint Unified district serves about 15,000 students across 27 schools in Colton, Bloomington, Grand Terrace, and parts of Fontana, spanning from elementary through high school, including alternative programs.

While the district faces economic challenges, there are standout schools, particularly in Grand Terrace. Grand Terrace High School has the district's highest graduation rate, and Terrace View Elementary and Ruth Grimes Elementary are top-performing elementary schools with strong test scores and notably low chronic absenteeism. In contrast, schools like Alice Birney Elementary and Slover Mountain High (Continuation) face significant academic challenges and require additional support.

A key finding is that middle schools, such as Colton Middle, are a district-wide weak point, ranking much lower than elementary and high schools. Despite lower test scores compared to the state average, the district's overall graduation rate is strong, suggesting effective support systems to help students complete their diplomas. Parents should note the clear link between regular attendance and higher achievement, as seen in the district's top schools.

Ranking:
Map legend
E Elementary M Middle H High A Alternative P Private





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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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