For the 2026 school year, there are 3 public charter schools serving 691 students in Malheur County, OR.
The top-ranked public charter schools in Malheur County, OR are Annex Charter School, Harper Charter School and Four Rivers Community School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Malheur County, OR public charter schools have an average math proficiency score of 26% (versus the Oregon public charter school average of 34%), and reading proficiency score of 44% (versus the 51% statewide average). Charter schools in Malheur County have an average ranking of 3/10, which is in the bottom 50% of Oregon public charter schools.
Minority enrollment is 56% of the student body (majority Hispanic), which is more than the Oregon public charter school average of 28% (majority Hispanic).
Best Public Charter Schools in Malheur County (2026)
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.
Harper Charter School
Charter School
(Math: 35-39% | Reading: 50-54%)
Rank:
Rank:
8/
Top 30%10
2987 Harper/westfall Rd
Harper, OR 97906
(541) 358-2473
Harper, OR 97906
(541) 358-2473
Gr: K-12 | 250 students Student-teacher ratio: 19:1 Minority enrollment: 22%
Rank: #33.
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%
Malheur County Public Schools (Closed)
School
Location
Quick Facts
Po Box 119
Jordan Valley, OR 97910
(208) 583-2420
Jordan Valley, OR 97910
(208) 583-2420
Gr: K-8 | 11 students Student-teacher ratio: 11:1
Frequently Asked Questions
What are the top-ranked public charter schools in Malheur County, OR?
The top-ranked public charter schools in Malheur County, OR include Annex Charter School, Harper Charter School and Four Rivers Community School.
How many public charter schools are located in Malheur County?
3 public charter schools are located in Malheur County.
What is the racial composition of students in Malheur County?
Malheur County public charter schools minority enrollment is 56% of the student body (majority Hispanic), which is more than the Oregon public charter schools average of 28% (majority Hispanic).
Recent Articles
Multilingual Learner Growth Models & Accountability
Learn how multilingual learner growth models are reshaping school accountability systems and what it means for public schools in 2026.
School-Based Health Clinics: Funding, Billing, and Student Access
Learn how school-based health clinics are funded, how billing works, and how students access care in public schools.
Outdoor Learning in Urban Schools: Forest School Programs
Explore how urban districts adopt outdoor learning and forest school programs to boost student engagement, well-being, and academic success.