For the 2026 school year, there are 7 charter public middle schools serving 2,617 students in Washington.
Learn more about how charter schools work. The top-ranked charter public middle schools in Washington are Spokane International Academy, Catalyst Public Schools and Rainier Prep. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Washington charter public middle schools have an average math proficiency score of 44% (versus the Washington public middle school average of 37%), and reading proficiency score of 53% (versus the 51% statewide average).
Minority enrollment is 55% of the student body (majority Hispanic and Black), which is more than the Washington public middle school average of 50% (majority Hispanic).
Best Charter Public Middle Schools in Washington (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Spokane International Academy
Magnet School
Charter School
Charter School
(Math: 50% | Reading: 60%)
Rank:
Rank:
8/
Top 30%10
777 E Magnesium Rd
Spokane, WA 99208
(509) 209-8730
Spokane, WA 99208
(509) 209-8730
Gr: K-10 | 754 students Student-teacher ratio: 14:1 Minority enrollment: 39%
Rank: #22.
Catalyst Public Schools
Charter School
(Math: 45% | Reading: 60-64%)
Rank:
Rank:
7/
Top 50%10
1305 Ironsides Ave
Bremerton, WA 98310
(360) 207-0229
Bremerton, WA 98310
(360) 207-0229
Gr: K-8 | 483 students Student-teacher ratio: 15:1 Minority enrollment: 40%
Rank: #33.
Rainier Prep
Charter School
(Math: 50% | Reading: 51%)
Rank:
Rank:
7/
Top 50%10
10211 12th Ave S
Seattle, WA 98168
(206) 494-5979
Seattle, WA 98168
(206) 494-5979
Gr: 5-8 | 333 students Student-teacher ratio: 14:1 Minority enrollment: 95%
Rank: #44.
Summit Public School Atlas
Charter School
(Math: 43% | Reading: 52%)
Rank:
Rank:
6/
Top 50%10
9601 35th Avenue Sw
Seattle, WA 98126
(206) 307-7645
Seattle, WA 98126
(206) 307-7645
Gr: 6-12 | 545 students Student-teacher ratio: 19:1 Minority enrollment: 63%
Rank: #55.
Pinnacles Prep Charter School
Charter School
(Math: 30-34% | Reading: 50-54%)
Rank:
Rank:
5/
Bottom 50%10
504 S. Chelan Ave.
Wenatchee, WA 98801
(805) 669-8801
Wenatchee, WA 98801
(805) 669-8801
Gr: 6-9 | 221 students Student-teacher ratio: 16:1 Minority enrollment: 40%
Rank: #66.
Pullman Community Montessori
Charter School
(Math: 21-39% | Reading: 21-39%)
Rank:
Rank:
2/
Bottom 50%10
115 Nw State St, Rm 215
Pullman, WA 99163
(509) 336-5909
Pullman, WA 99163
(509) 336-5909
Gr: K-9 | 118 students Student-teacher ratio: 20:1 Minority enrollment: 32%
Rank: #77.
Rainier Valley Leadership Academy
Charter School
(Math: 10-14% | Reading: 25-29%)
Rank:
Rank:
1/
Bottom 50%10
6020 Rainier Avenue S
Seattle, WA 98118
(206) 659-0956
Seattle, WA 98118
(206) 659-0956
Gr: 6-12 | 163 students Student-teacher ratio: 14:1 Minority enrollment: 97%
Frequently Asked Questions
What are the top-ranked charter public middle schools in Washington?
The top-ranked charter public middle schools in Washington include Spokane International Academy, Catalyst Public Schools and Rainier Prep.
How many charter public middle schools are located in Washington?
7 charter public middle schools are located in Washington.
What is the racial composition of students in Washington?
Washington charter public middle schools minority enrollment is 55% of the student body (majority Hispanic and Black), which is more than the Washington public middle schools average of 50% (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.