For the 2026 school year, there are 2 public high schools serving 1,053 students in Ontario, OR.
The top-ranked public high schools in Ontario, OR are Ontario High School and Four Rivers Community School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Ontario, OR public high schools have an average math proficiency score of 17% (versus the Oregon public high school average of 24%), and reading proficiency score of 46% (versus the 48% statewide average). High schools in Ontario have an average ranking of 4/10, which is in the bottom 50% of Oregon public high schools.
Ontario, OR public high school have a Graduation Rate of 86%, which is more than the Oregon average of 82%.
The school with highest graduation rate is Ontario High School, with 85-89% graduation rate. Read more about public school graduation rate statistics in Oregon or national school graduation rate statistics.
Minority enrollment is 76% of the student body (majority Hispanic), which is more than the Oregon public high school average of 41% (majority Hispanic).
Best Public High Schools in Ontario, OR (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Ontario High School
(Math: 15-19% | Reading: 55-59%)
Rank:
Rank:
6/
Top 50%10
1115 W Idaho Ave
Ontario, OR 97914
(541) 889-5309
Ontario, OR 97914
(541) 889-5309
Gr: 9-12 | 691 students Student-teacher ratio: 16:1 Minority enrollment: 72%
Rank: #22.
Four Rivers Community School
Charter School
(Math: 15-19% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
2449 Sw 4th Ave
Ontario, OR 97914
(541) 889-3715
Ontario, OR 97914
(541) 889-3715
Gr: K-12 | 362 students Student-teacher ratio: 17:1 Minority enrollment: 84%
Frequently Asked Questions
What are the top-ranked public high schools in Ontario, OR?
The top-ranked public high schools in Ontario, OR include Ontario High School and Four Rivers Community School.
How many public high schools are located in Ontario?
2 public high schools are located in Ontario.
What is the racial composition of students in Ontario?
Ontario public high schools minority enrollment is 76% of the student body (majority Hispanic), which is more than the Oregon public high schools average of 41% (majority Hispanic).
Recent Articles
Spring Parent-Teacher Conferences: Key Questions
Spring Parent-Teacher Conferences: Questions Every Parent Should Ask to support academic growth, social development, and 2026 classroom goals.
Prepare for Spring Tests Without Anxiety
Learn how to prepare for spring standardized tests without increasing anxiety using proven strategies for families and schools.
Why Public Schools Are Launching Marketing Campaigns in 2026
Discover why public schools are launching marketing campaigns in 2026 and how enrollment shifts, school choice, and funding pressures are driving change.