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Ontario-Montclair


At a glance
745thof 1,543 California districts▲ 44
Better than 51% of California districts
950 West D St.
Ontario, CA 91762-3026
·(909) 459-2500·All California district rankings →
Statewide performance 2016–2025
2025: better than 51.7% of districts
34
Schools
17,640
Students
Top rankedEdison Elementary1028th of 5,857 California elementary schools
Biggest riser
Montera Elementary up 916 spots statewide this year
Smallest classes
De Anza Middle 15.8 students per teacher
SchoolDigger ratings
4★
3★
2★
1★
1 school without a SchoolDigger rating (too few tested students)
Summary:

The Ontario-Montclair school district serves roughly 17,000 students across 33 elementary and middle schools in a community where most families face economic challenges.

While the district's test scores generally lag behind state averages, especially in science, several schools stand out for strong performance. Edison Elementary is the top-ranked school, followed by other high performers like Monte Vista Elementary and Buena Vista Arts-Integrated. On the other end, schools such as Mariposa Elementary and Vina Danks Middle rank significantly lower and are identified as needing improvement.

Key insights show that higher student attendance is strongly linked to better academic results, and surprisingly, the highest-performing school has the lowest per-student spending in the district. The Online Academy shows promise with its students scoring well in math and science. For parents, this means success is possible at many district schools, with a focus on consistent attendance and the specific programs offered at each campus being important factors to consider.

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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