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Elementary Schools in Ontario, California

Near Average2024–25 data33 schools · avg 43.6/100

Ontario, California has 33 ranked elementary schools with an average Scope Score of 43.6/100 — 0.2 points near the California state average of 43.8. The highest-scoring school is Park View Elementary at 74/100, where 44.3% of students exceed the state standard on the 2025 CAASPP assessment. Ontario schools average 16.7% exceeded standard (state: 21.6%) — this exceeded-vs-met distinction reveals whether schools push students beyond proficiency or pace toward it. Chronic absenteeism averages 16.2% (near the state average of 18.1%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

Avg Scope Score
43.6
State avg: 43.8
SchoolScope composite
Score Range
52.9
20.8 – 73.7
Avg Exceeded %
16.7%
State avg: 21.6%
CDE CAASPP 2025
Chronic Absenteeism
16.2%
State avg: 18.1%
CDE Attendance 2025
Schools Ranked
33
With Scope Scores

How Ontario schools compare

Ontario's 33 ranked elementary schools average a Scope Score of 43.6 — 0.2 points near the California state average of 43.8. Scores range from 20.8 to 73.7, a 52.9-point spread.

The top-ranked school is Park View Elementary with a Scope Score of 74 and 44.3% of students exceeding standard.

Chronic absenteeism in Ontario averages 16.2%, which is near the state average of 18.1%.

How we score · Scope Score weights exceeded (40%), met (22%), growth (15%), absenteeism (10%), suspension (5%), ELPAC (5%), baseline (3%)

School archetypes in Ontario

16 Culture First3 Strong All-Around14 Building Momentum

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

Schools in Ontario ranked by Scope Score

#SchoolExceededScore
1Park View Elementary
Mountain View Elementary Strong All-Around
44.3%Strong
74/100
2Edison Elementary
Ontario-Montclair Strong All-Around
36.4%Solid
62/100
3Chaffey District Online High
Chaffey Joint Union High Strong All-Around
42.6%Solid
61/100
4Ontario High
Chaffey Joint Union High Building Momentum
19.6%Solid
56/100
5Liberty Elementary
Chino Valley Unified Building Momentum
26.4%Solid
52/100
6Colony High
Chaffey Joint Union High Building Momentum
15.8%Solid
52/100
7Elderberry Elementary
Ontario-Montclair Building Momentum
22.8%Solid
51/100
8Corona Elementary
Ontario-Montclair Culture First
24.1%Solid
51/100
9Chaffey High
Chaffey Joint Union High Building Momentum
16.7%Developing
49/100
10Vista Grande Elementary
Ontario-Montclair Culture First
22.3%Developing
49/100
11Online Academy
Ontario-Montclair Culture First
22.1%Developing
49/100
12Vineyard Elementary
Ontario-Montclair Culture First
14.8%Developing
45/100
13Central Language Academy
Ontario-Montclair Building Momentum
13.9%Developing
45/100
14Hawthorne Elementary
Ontario-Montclair Building Momentum
15.4%Developing
45/100
15El Camino Elementary
Ontario-Montclair Culture First
16.0%Developing
43/100
16Sultana Elementary
Ontario-Montclair Culture First
13.8%Developing
43/100
17Lincoln Elementary
Ontario-Montclair Culture First
14.6%Developing
43/100
18Bon View Elementary
Ontario-Montclair Culture First
12.4%Developing
41/100
19Euclid Elementary
Ontario-Montclair Culture First
11.8%Developing
41/100
20Ranch View Elementary
Mountain View Elementary Building Momentum
19.3%Developing
41/100
21Creek View Elementary
Mountain View Elementary Building Momentum
15.9%Developing
40/100
22Mission Elementary
Ontario-Montclair Culture First
10.6%Developing
40/100
23Levi H. Dickey Elementary
Chino Valley Unified Culture First
15.6%Developing
39/100
24Richard Haynes Elementary
Ontario-Montclair Culture First
11.2%Developing
37/100
25Mariposa Elementary
Ontario-Montclair Culture First
10.0%Developing
37/100
26Berlyn Elementary
Ontario-Montclair Building Momentum
8.5%Developing
37/100
27Del Norte Elementary
Ontario-Montclair Culture First
10.4%Developing
36/100
28Mountain View Elementary
Mountain View Elementary Culture First
10.3%Developing
35/100
29Ray Wiltsey Middle
Ontario-Montclair Building Momentum
10.0%Developing
34/100
30Arroyo Elementary
Ontario-Montclair Culture First
8.5%Developing
33/100

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.

Private Schools in Ontario

Private schools don't participate in California's standardized testing (CAASPP) and cannot be scored or ranked. Showing enrollment, student-teacher ratio, and affiliation where available.

Ontario Christian School
Brethren · Grades Pre-K-12 · 1266 students
38:1Private
Ontario Christian School
Brethren · Grades Pre-K-12 · 1258 students
14:1Private
St. George Parish School
Roman Catholic · Grades Pre-K-8 · 281 students
18:1Private
Montecito Baptist School
Amish · Grades Pre-K-12 · 70 students
9:1Private
Orion International Academy
Nonsectarian · Grades Pre-K-12 · 68 students
7:1Private

What Scope Scores can't tell you about Ontario

  • 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 33 ranked elementary schools average a Scope Score of 43.6/100, which is 0.2 points near the California state average of 43.8. 16.7% 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 Park View Elementary with a Scope Score of 74/100 and 44.3% 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 43.6 vs. the statewide average of 43.8 (0.2 points near). The exceeded rate averages 16.7% vs. 21.6% statewide. Chronic absenteeism averages 16.2% vs. 18.1% statewide. Scores range from 20.8 to 73.7, a 52.9-point spread.
How many schools are in Ontario?
Ontario has 33 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.

Related

All California SchoolsTop Schools in OntarioMountain View ElementaryOntario-MontclairChaffey Joint Union HighChino Valley UnifiedCucamonga Elementary

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