Ontario-montclair School District
School District · Ontario, California
Avg Rating
7.3
out of 10
Schools
33
27 elem, 6 mid
Per-Pupil Spending
$21,882
Student-Teacher Ratio
20.9:1
Avg Rating
7.3
out of 10
Schools
33
27 elem, 6 mid
Per-Pupil Spending
$21,882
Student-Teacher Ratio
20.9:1
Evaluating Ontario-montclair?
A district shares budget, policy, and attendance zones across its schools — use this page to judge Ontario-montclair as a whole, then compare how its individual schools differ.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
Edison Elementary
Ontario · Elementary. Compare this profile against district averages, level fit, and attendance-zone reality below.
Vista Grande Elementary
Ontario · Elementary. Compare this profile against district averages, level fit, and attendance-zone reality below.
Serrano Middle
Montclair · Middle. Compare this profile against district averages, level fit, and attendance-zone reality below.
How this district compares
California rank
#141 of 713
districts by avg. composite
Vs. state average
+1.1
above California avg
Per-pupil spending
$21,882
+$4,235 vs California median
District size
17,944 students
Much larger than California median
The short answer
Ontario-montclair ranks #141 of 713 California districts by overall school rating. Ontario-montclair's schools with real test data average 7.3/10 across 32 schools. Its top-rated schools are Edison Elementary (8.9/10), Vista Grande Elementary (8.8/10), and Serrano Middle (8.7/10). Schools with estimated (proxy) scores are excluded from this ranking.
Rates 8.7/10 despite 93% of students being economically disadvantaged. That's about 1.6 points higher than its student-poverty level predicts. Roughly as clean a case of strong results without an affluent-ZIP price tag as you'll find among Ontario-montclair schools.
STAAR proficiency rose +18.4 points from 2022 to 2024. That's the biggest jump among Ontario-montclair schools across the two most recent comparable testing years.
Top-Rated Schools in Ontario-montclair
Ranked by MySchoolScout composite rating using only schools with real test data (32 of 33). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.
| # | School | Rating |
|---|---|---|
| 1 | Edison Elementary | 8.9 / 10 |
| 2 | Vista Grande Elementary | 8.8 / 10 |
| 3 | Serrano Middle | 8.7 / 10 |
| 4 | Oaks Middle | 8.4 / 10 |
| 5 | De Anza Middle | 8.4 / 10 |
| 6 | Montera Elementary | 8.3 / 10 |
| 7 | Buena Vista Arts-integrated | 8.2 / 10 |
| 8 | Vernon Middle | 8.1 / 10 |
| 9 | Sultana Elementary | 8.0 / 10 |
| 10 | Vineyard Elementary | 8.0 / 10 |
See all 33 schools — including those with estimated data — in the full directory below. How we rate schools.
About Ontario-montclair
Ontario-montclair is a Ontario, California school district serving 33 schools. The district educates 17,944 students with a student-teacher ratio of 20.9:1. The district invests $21,882 per student annually.
With an average rating of 7.3/10, Ontario-montclair is among the strongest-performing districts in the state.
The highest-rated school in the district is Edison Elementary, which has a composite score of 8.9/10.
In standardized testing, Ontario-montclair students show an average math proficiency of 37.3% and ELA proficiency of 41.1%.
The district includes 27 elementary schools , 6 middle schools .
District Map
Schools in Ontario-montclair, colored by MySchoolScout rank. Click a pin for details.
District Average Test Scores
Average proficiency across all schools in Ontario-montclair with test data.
Schools in Ontario-montclair
33 schools Elementary Schools 27
District Details
- State
- California
- City
- Ontario
- Total Enrollment
- 17,944
- Teachers (FTE)
- 858
- Child Poverty Rate
- 0.2%
- Data Year
- 2023
Frequently Asked Questions
How many schools are in Ontario-montclair?
Ontario-montclair has 33 schools in total — 27 elementary, 6 middle. You can explore each school's ratings and details on this page.
What is the average rating for Ontario-montclair?
The average composite rating for Ontario-montclair is 7.3/10. This score is calculated from the individual ratings of all schools with academic data in the district.
What is the per-pupil spending in Ontario-montclair?
Ontario-montclair spends $21,882 per student per year.
What is the student-teacher ratio in Ontario-montclair?
The average student-teacher ratio in Ontario-montclair is 20.9:1.
What is the top-rated school in Ontario-montclair?
Edison Elementary is the highest-rated school in Ontario-montclair with a composite score of 8.9/10.
What are the test scores in Ontario-montclair?
Across schools in Ontario-montclair with test data, the average math proficiency is 37.3% and the average ELA (reading/writing) proficiency is 41.1%. These figures represent the percentage of students meeting or exceeding grade-level standards.
How does Ontario-montclair compare to other districts in California?
Ontario-montclair has an average school rating of 7.3/10 across 33 schools. Families can compare this to other districts in California by visiting individual district pages. Factors like school size, available programs, and community demographics also play a role in choosing the right fit.
How does MySchoolScout rate schools?
MySchoolScout ratings blend student growth, poverty-adjusted academic performance, and learning environment — plus college readiness for high schools. Weights vary by school level, and equity data is shown for context without being factored into the score. Learn more about our rating system on our methodology page.
District Averages
- Overall Rating
- 7.3/10
- Math Proficiency
- 37.3%
- ELA Proficiency
- 41.1%
Resources
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateOther School Districts in CA
Compare Ontario-montclair with neighboring districts in the state.
- Los Angeles Unified (785)
- San Diego Unified (175)
- San Francisco Unified (113)
- Fresno Unified (101)
- Long Beach Unified (82)
- Oakland Unified (82)
- San Bernardino City Unified (76)
- Sacramento City Unified (73)
- San Juan Unified (68)
- Elk Grove Unified (67)
- Garden Grove Unified (66)
- Capistrano Unified (59)
- West Contra Costa Unified (54)
- Stockton Unified (54)
- Corona-norco Unified (53)
- Mt. Diablo Unified (52)
- Santa Ana Unified (52)
- Clovis Unified (50)
- Lodi Unified (49)
- Riverside Unified (49)
- Bakersfield City (45)
- Irvine Unified (45)
- Fontana Unified (44)
- Fremont Unified (44)
Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.
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