For the 2025 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 (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
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
Grades: K-10
| 754 students
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
Grades: K-8
| 483 students
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
Grades: 5-8
| 333 students
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
Grades: 6-12
| 545 students
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
Grades: 6-9
| 221 students
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
Grades: K-9
| 118 students
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
Grades: 6-12
| 163 students
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).
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