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Schools in 91764 — Ontario, California

91764 has 13 ranked schools averaging a Scope Score of 41.0 — 2.7 points below the California state average of 43.8. Scores range from 20.8 to 62.2, a 41.4-point spread.

Avg Scope Score
41.0
State avg: 43.8
SchoolScope composite
Score Range
41.4
20.8 – 62.2
Avg Exceeded %
15.5%
State avg: 21.6%
Chronic Absenteeism
17.7%
State avg: 18.1%
Schools Ranked
13
With Scope Scores

How 91764 schools perform

The top-ranked school is Edison Elementary with a Scope Score of 62 and 36.4% of students exceeding standard.

Chronic absenteeism across 91764 averages 17.7%, near the state average of 18.1%.

How 91764 compares to nearby zip codes

Zip CodeCitySchoolsAvg Scorevs 91764
91764Ontario1341.0
91763Montclair848.9+7.8
91765Diamond Bar970.0+28.9
91762Ontario1144.9+3.9
91766Pomona1436.7-4.3
91761Ontario1046.4+5.4

School archetypes in 91764

4 On the Rise3 Culture First1 Strong All-Around1 Growth Engine4 Building Momentum

Hidden gems: 5 schools in 91764 are classified as On the Rise (4) or Growth Engine — showing positive growth trajectories that raw proficiency scores alone don't capture. These are schools where students leave with more than they arrived with.

Archetypes are data-driven labels based on Scope Score dimensions. Learn more

All schools in 91764

#SchoolScoreCountyExceededMet+AbsentSusp.
1Edison Elementary
Ontario-Montclair Building Momentum
62San Bernardino36.4%62.8%5.2%1.1%
2Chaffey District Online High
Chaffey Joint Union High Strong All-Around
61San Bernardino42.6%61.8%23.4%1.6%
3Corona Elementary
Ontario-Montclair Growth Engine
51San Bernardino24.1%48.3%10.9%0.3%
4Vineyard Elementary
Ontario-Montclair On the Rise
45San Bernardino14.8%34.2%6.4%0.6%
5Central Language Academy
Ontario-Montclair On the Rise
45San Bernardino13.9%38.2%7.5%1.7%
6Lincoln Elementary
Ontario-Montclair Culture First
43San Bernardino14.6%35.5%9.7%0.1%
7Mariposa Elementary
Ontario-Montclair On the Rise
37San Bernardino10.0%26.6%6.7%1.0%
8Berlyn Elementary
Ontario-Montclair On the Rise
37San Bernardino8.5%26.6%13.0%1.7%
9Del Norte Elementary
Ontario-Montclair Culture First
36San Bernardino10.4%29.1%8.5%1.0%
10Ray Wiltsey Middle
Ontario-Montclair Building Momentum
34San Bernardino10.0%30.3%15.8%4.3%
11Arroyo Elementary
Ontario-Montclair Culture First
33San Bernardino8.5%29.9%14.0%1.2%
12Ontario Center
Cucamonga Elementary Building Momentum
29San Bernardino6.8%26.7%24.4%3.1%
13Valley View High (Continuation)
Chaffey Joint Union High Building Momentum
21San Bernardino1.3%7.2%84.9%4.6%

Schools in 91764 on the map

Data source: California Department of Education · CAASPP 2024-25 · Methodology

Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.

What Scope Scores can't tell you about 91764

  • Class sizes and student-teacher interaction quality
  • Quality of arts, music, athletics, and enrichment programs
  • Teacher experience, turnover, and professional development
  • Campus safety, bullying climate, and social-emotional support
  • Parent and community engagement levels
  • Quality of special education and gifted programs
  • How school zones and enrollment boundaries affect access

Scope Scores measure academic performance and school climate using public data. They are one lens among many. Full methodology

Frequently asked questions

Are the schools in Ontario good?
Ontario's 13 ranked elementary schools average a Scope Score of 41.0/100, which is 2.7 points below the California state average of 43.8. 15.5% of students exceed the state standard on average (state average: 21.6%). The Scope Score weights six dimensions: exceeded standard (40%), met standard (22%), grade-level growth (15%), chronic absenteeism (10%), suspension rate (5%), and ELPAC proficiency (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
What is the best elementary school in Ontario?
The highest-scoring elementary school in Ontario is Edison Elementary with a Scope Score of 62/100 and 36.4% of students exceeding the state standard. Rankings are based on SchoolScope's 2025 Scope Score, which measures academic performance and school climate using publicly available California data. See full methodology.
How do Ontario schools compare to the state average?
Ontario elementary schools average a Scope Score of 41.0 vs. the statewide average of 43.8 (2.7 points below). The exceeded rate averages 15.5% vs. 21.6% statewide. Chronic absenteeism averages 17.7% vs. 18.1% statewide. Scores range from 20.8 to 62.2, a 41.4-point spread.
How many schools are in Ontario?
Ontario has 13 ranked elementary schools with Scope Scores. Schools are ranked using a weighted composite of CAASPP test performance, growth trajectory, chronic absenteeism, and suspension rate. Schools with insufficient testing data are not ranked.
What does the Scope Score measure?
The Scope Score is SchoolScope's proprietary composite rating (0–100) based on six dimensions of publicly available California school data: the exceeded-vs-met standard split, overall proficiency, grade 3–5 growth, chronic absenteeism, suspension rate, and ELPAC English Learner proficiency. Unlike single-number ratings, the Scope Score separates students who "exceeded" from those who "met" the standard — revealing whether a school pushes students beyond proficiency or paces toward it. Full methodology and weights.