For the 2025-26 school year, there are 7 public elementary schools serving 1,628 students in Ontario, OR.
The top ranked public elementary schools in Ontario, OR are Annex Charter School, Pioneer Elementary School and Alameda Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Ontario, OR public elementary schools have an average math proficiency score of 25% (versus the Oregon public elementary school average of 33%), and reading proficiency score of 34% (versus the 44% statewide average). Elementary schools in Ontario have an average ranking of 3/10, which is in the bottom 50% of Oregon public elementary schools.
Minority enrollment is 69% of the student body (majority Hispanic), which is more than the Oregon public elementary school average of 41% (majority Hispanic).
Best Public Elementary Schools in Ontario, OR (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Annex Charter School
Charter School
(Math: 40-49% | Reading: 50-59%)
Rank:
Rank:
8/
Top 30%10
402 Annex Rd
Ontario, OR 97914
(541) 262-3280
Ontario, OR 97914
(541) 262-3280
Gr: K-8 | 79 students Student-teacher ratio: 9:1 Minority enrollment: 34%
Rank: #22.
Pioneer Elementary School
(Math: 30-39% | Reading: 30-39%)
Rank:
Rank:
5/
Bottom 50%10
4744 Pioneer Rd
Ontario, OR 97914
(541) 262-3902
Ontario, OR 97914
(541) 262-3902
Gr: K-5 | 112 students Student-teacher ratio: 14:1 Minority enrollment: 60%
Rank: #33.
Alameda Elementary School
(Math: 28% | Reading: 34%)
Rank:
Rank:
4/
Bottom 50%10
1252 Alameda Dr
Ontario, OR 97914
(541) 889-5497
Ontario, OR 97914
(541) 889-5497
Gr: K-6 | 339 students Student-teacher ratio: 14:1 Minority enrollment: 67%
Rank: #44.
Aiken Elementary School
(Math: 30-34% | Reading: 25-29%)
Rank:
Rank:
4/
Bottom 50%10
1297 W Idaho Ave
Ontario, OR 97914
(541) 889-5584
Ontario, OR 97914
(541) 889-5584
Gr: K-5 | 264 students Student-teacher ratio: 18:1 Minority enrollment: 64%
Rank: #55.
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%
Rank: #66.
May Roberts Elementary School
(Math: 19% | Reading: 33%)
Rank:
Rank:
3/
Bottom 50%10
590 Nw 8th St
Ontario, OR 97914
(541) 889-5379
Ontario, OR 97914
(541) 889-5379
Gr: K-6 | 348 students Student-teacher ratio: 15:1 Minority enrollment: 71%
Rank: #77.
Cairo Elementary School
(Math: 15-19% | Reading: 20-29%)
Rank:
Rank:
2/
Bottom 50%10
531 Hwy 20/26
Ontario, OR 97914
(541) 889-5745
Ontario, OR 97914
(541) 889-5745
Gr: K-5 | 124 students Student-teacher ratio: 12:1 Minority enrollment: 73%
Frequently Asked Questions
What are the top ranked public elementary schools in Ontario, OR?
The top ranked public elementary schools in Ontario, OR include Annex Charter School, Pioneer Elementary School and Alameda Elementary School.
How many public elementary schools are located in Ontario?
7 public elementary schools are located in Ontario.
What is the racial composition of students in Ontario?
Ontario public elementary schools minority enrollment is 69% of the student body (majority Hispanic), which is more than the Oregon public elementary schools average of 41% (majority Hispanic).
Which public elementary schools in Ontario are often viewed compared to one another?
Popular comparisons of public elementary schools in Ontario include: Pioneer Elementary School vs. Alameda Elementary School, Alameda Elementary School vs. Aiken Elementary School, Pioneer Elementary School vs. Aiken Elementary School
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