For the 2026 school year, there are 5 public high schools serving 1,204 students in Morrow County, OR.
The top-ranked public high schools in Morrow County, OR are Heppner Junior/senior High School, Ione Community Charter School and Riverside Junior/senior High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Morrow County, OR public high schools have an average math proficiency score of 16% (versus the Oregon public high school average of 24%), and reading proficiency score of 37% (versus the 48% statewide average). High schools in Morrow County have an average ranking of 1/10, which is in the bottom 50% of Oregon public high schools.
Morrow County, OR public high school have a Graduation Rate of 87%, which is more than the Oregon average of 82%.
The school with highest graduation rate is Riverside Junior/senior High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in Oregon or national school graduation rate statistics.
Minority enrollment is 61% 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 Morrow County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Heppner Junior/senior High School
(Math: 30-34% | Reading: 60-64%)
Rank:
Rank:
8/
Top 30%10
710 Nw Morgan St
Heppner, OR 97836
(541) 676-9138
Heppner, OR 97836
(541) 676-9138
Gr: 7-12 | 171 students Student-teacher ratio: 14:1 Minority enrollment: 22%
Rank: #22.
Ione Community Charter School
Charter School
(Math: 25-29% | Reading: 40-44%)
Rank:
Rank:
5/
Bottom 50%10
445 Spring St
Ione, OR 97843
(541) 422-7131
Ione, OR 97843
(541) 422-7131
Gr: K-12 | 113 students Student-teacher ratio: 8:1 Minority enrollment: 36%
Rank: #33.
Riverside Junior/senior High School
(Math: 12% | Reading: 33%)
Rank:
Rank:
2/
Bottom 50%10
210 Boardman Ave
Boardman, OR 97818
(541) 481-2525
Boardman, OR 97818
(541) 481-2525
Gr: 7-12 | 520 students Student-teacher ratio: 19:1 Minority enrollment: 81%
Rank: #44.
Irrigon Junior/senior High School
(Math: 10-14% | Reading: 30-34%)
Rank:
Rank:
2/
Bottom 50%10
315 E Wyoming Ave
Irrigon, OR 97844
(541) 922-5551
Irrigon, OR 97844
(541) 922-5551
Gr: 7-12 | 345 students Student-teacher ratio: 15:1 Minority enrollment: 55%
Rank: #55.
Morrow Education Center
Alternative School
(Math: ≤10% | Reading: 20-29%)
Rank:
Rank:
1/
Bottom 50%10
240 W Columbia Ln
Irrigon, OR 97844
(541) 922-4004
Irrigon, OR 97844
(541) 922-4004
Gr: K-12 | 62 students Student-teacher ratio: 31:1 Minority enrollment: 65%
Frequently Asked Questions
What are the top-ranked public high schools in Morrow County, OR?
The top-ranked public high schools in Morrow County, OR include Heppner Junior/senior High School, Ione Community Charter School and Riverside Junior/senior High School.
How many public high schools are located in Morrow County?
5 public high schools are located in Morrow County.
What is the racial composition of students in Morrow County?
Morrow County public high schools minority enrollment is 61% of the student body (majority Hispanic), which is more than the Oregon public high schools average of 41% (majority Hispanic).
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