Ontario · San Bernardino County

Schools in Ontario

Ontario’s 26 public elementary schools run from the 24th to the 97th percentile among the 5,726 California elementary schools we score (spring 2026 tests).

Elementary · 26 schools

from 24th to 97th · among 5,726 California elementary schools we score · spring 2026 tests

1Needs Support
10Developing
11Solid
4Strong

Each column counts the schools in one five-percentile step; the number above it is that count.

Middle and high school pictures

Middle · 11 schools

from 37th to 97th · among 2,529 California middle schools we score · spring 2026 tests

  • Edison Elementary: 97th percentile, Strong
  • Online Academy: 93rd percentile, Strong
  • Central Language Academy: 78th percentile, Strong
  • Grace Yokley Junior High: 74th percentile, Solid
  • Ray Wiltsey Middle: 68th percentile, Solid
  • Oaks Middle: 60th percentile, Solid
  • De Anza Middle: 58th percentile, Solid
  • Woodcrest Junior High: 55th percentile, Solid
  • Vineyard Elementary: 54th percentile, Solid
  • Arroyo Elementary: 46th percentile, Developing
  • Vina Danks Middle: 37th percentile, Developing
0Needs Support
2Developing
6Solid
3Strong

High · 4 schools

from 25th to 84th · among 1,498 California high schools we score · spring 2025 tests

  • Chaffey District Online High: 84th percentile, Strong
  • Ontario High: 53rd percentile, Solid
  • Colony High: 28th percentile, Developing
  • Chaffey High: 25th percentile, Developing
0Needs Support
2Developing
1Solid
1Strong

Each column counts the schools in one five-percentile step; the number above it is that count. One dot per school. Each stage is placed only among California schools at its own level. 5 of the 36 ranked schools teach two levels, so they appear in more than one picture.

Schools around Ontario

38 listed public schools with mapped locations.

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Percentile among California schools at the same level

  • Strong75th+
  • Solid50–74th
  • Developing25–49th
  • Needs Supportbelow 25th
  • Not scored

The school lists on this page are also available without the map.

Elementary schools

Which elementary schools in Ontario score highest?

Park View Elementary is highest, at the 97th percentile.

That’s higher than 97 in 100 of the 5,726 California elementary schools we score (spring 2026 tests).

Highest in Ontario

Each percentile compares a school with California schools at its own level. What patterns mean

  • Park View ElementaryMountain View Elementary · High ceiling · Broad base · Grade-to-grade gains
    97thStrongScope Score 81
  • Edison ElementaryOntario-Montclair · Broad base · Grade-to-grade gains
    92ndStrongScope Score 69
  • Elderberry ElementaryOntario-Montclair · Grade-to-grade gains
    85thStrongScope Score 59
Show the other 23 elementary schools
Context

The average Ontario elementary school had 9 in 100 students chronically absent (missed 10% or more of school days) in 2025–26; the average California elementary school we score had 17 in 100. Both are averages of school rates, each school counted once.

Middle schools

Which middle schools in Ontario score highest?

Edison Elementary is highest, at the 97th percentile.

That’s higher than 97 in 100 of the 2,529 California middle schools we score (spring 2026 tests).

Highest in Ontario

Each percentile compares a school with California schools at its own level.

Show the other 8 middle schools
Context

The average Ontario middle school had 10 in 100 students chronically absent in 2025–26; the average California middle school we score had 18 in 100.

High schools

Which high schools in Ontario score highest?

Chaffey District Online High is highest, at the 84th percentile.

That’s higher than 84 in 100 of the 1,498 California high schools we score (spring 2025 tests).

Highest in Ontario

Each percentile compares a school with California schools at its own level.

Show the other 1 high school
  • Chaffey HighChaffey Joint Union High
    25thDevelopingScope Score 48
Context

The average Ontario high school had 32 in 100 students chronically absent in 2025–26; the average California high school we score had 22 in 100.

2 high schools not ranked statewide

Continuation schools and court and community schools enroll students differently from a regular school, so each is compared only with its own kind or not ranked.

  • Valley View High (Continuation)Continuation high school: compared only with other continuation schools
  • Chaffey Community DayCommunity day school: students are placed here by probation, district or voluntary referral, including after an expulsion, so we don’t rank it

9 private schools have a Ontario address. They don’t take California’s state tests, so we don’t score them. See them in the private-school directory →

Which places nearby can you look at next?

School districts

More places (8)

ZIP codes

Before kindergarten

Common questions

Which public schools in Ontario rank highest?

Elementary: Park View Elementary, 97th percentile (Strong). Middle: Edison Elementary, 97th percentile (Strong). High: Chaffey District Online High, 84th percentile (Strong). Each percentile is among the California schools at the same level we score. A rank doesn’t decide fit or whether a child can enroll.

Does living in Ontario decide which school my child attends?

No. A city can hold schools from more than one district, and attendance boundaries decide which school serves an address. Confirm the school for your address with the district.
More questions (3)

Are the public schools in Ontario good?

Ontario’s 26 public elementary schools run from the 24th to the 97th percentile among the 5,726 California elementary schools we score (spring 2026 tests). By band: 4 Strong, 11 Solid, 10 Developing and 1 Needs Support. Ontario’s 11 public middle schools run from the 37th to the 97th percentile among the 2,529 California middle schools we score (spring 2026 tests). By band: 3 Strong, 6 Solid and 2 Developing. Ontario’s 4 public high schools run from the 25th to the 84th percentile among the 1,498 California high schools we score (spring 2025 tests). By band: 1 Strong, 1 Solid and 2 Developing. A percentile compares a school with California public schools at the same level that we score. How we score schools.

How does chronic absence in Ontario compare with California?

The average Ontario elementary school had 9 in 100 students chronically absent (missed 10% or more of school days) in 2025–26; the average California elementary school we score had 17 in 100. Both are averages of school rates, each school counted once. The average Ontario middle school had 10 in 100 students chronically absent in 2025–26; the average California middle school we score had 18 in 100. The average Ontario high school had 32 in 100 students chronically absent in 2025–26; the average California high school we score had 22 in 100. These are averages of school rates: each school counts once, whatever its size.

Where do these results come from?

California’s state tests (CAASPP): spring 2026 for elementary and middle schools, spring 2025 for high schools, and chronic-absence rates for 2025–26, published by the California Department of Education. Percentiles, bands and Scope Scores are SchoolScope’s calculations. How we score schools.

Sources and methodology

This page lists the public schools with a Ontario address, which can belong to more than one school district.

Data source: California Department of Education · CAASPP 2025–26 elementary and middle school; 2024–25 high school

Percentiles, bands and Scope Scores are SchoolScope’s own calculations from these state files.

View CDE data ↗ (opens in a new tab)How Scope Scores work →

Download these schools (CSV)Free to use under CC BY 4.0 with attribution.