For the 2026 school year, there are 17 charter public schools serving 4,818 students in Washington.
Learn more about how charter schools work. The top-ranked charter public schools in Washington are Impact Public Schools, Spokane International Academy and Catalyst Public Schools. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Washington charter public schools have an average math proficiency score of 41% (versus the Washington public school average of 41%), and reading proficiency score of 54% (versus the 53% statewide average).
Minority enrollment is 65% of the student body (majority Black and Hispanic), which is more than the Washington public school average of 53% (majority Hispanic).
Best Charter Public Schools in Washington (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Impact Public Schools
Charter School
(Math: 52% | Reading: 55-59%)
Rank:
Rank:
8/
Top 30%10
3438 S. 148th Street
Seattle, WA 98168
(206) 712-7640
Seattle, WA 98168
(206) 712-7640
Gr: K-5 | 505 students Student-teacher ratio: 16:1 Minority enrollment: 90%
Rank: #22.
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-12 | 824 students Student-teacher ratio: 15:1 Minority enrollment: 40%
Rank: #33.
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-9 | 504 students Student-teacher ratio: 14:1 Minority enrollment: 44%
Rank: #44.
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 | 359 students Student-teacher ratio: 14:1 Minority enrollment: 95%
Rank: #55.
Lumen High School
Magnet School
Charter School
Charter School
(Math: <50% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
718 W. Riverside Avenue
Spokane, WA 99218
(509) 570-3921
Spokane, WA 99218
(509) 570-3921
Gr: 9-12 | 32 students Student-teacher ratio: 6:1 Minority enrollment: 47%
Rank: #66.
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 | 566 students Student-teacher ratio: 17:1 Minority enrollment: 63%
Rank: #77.
Summit Public School Sierra
Charter School
(Math: 25-29% | Reading: 60-64%)
Rank:
Rank:
6/
Top 50%10
1025 S King St
Seattle, WA 98134
(206) 453-2520
Seattle, WA 98134
(206) 453-2520
Gr: 9-12 | 214 students Student-teacher ratio: 15:1 Minority enrollment: 58%
Rank: #88.
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: 6-10 | 234 students Student-teacher ratio: 12:1 Minority enrollment: 45%
Rank: #99.
Innovation High School
Magnet School
Charter School
Charter School
(Math: 27% | Reading: 54%)
Rank:
Rank:
5/
Bottom 50%10
811 E. Sprague, Suite A
Spokane, WA 99202
(509) 389-4848
Spokane, WA 99202
(509) 389-4848
Gr: 9-12 | 232 students Student-teacher ratio: 12:1 Minority enrollment: 23%
Rank: #1010.
Summit Public School Olympus
Charter School
(Math: 11-19% | Reading: 50-59%)
Rank:
Rank:
3/
Bottom 50%10
409 Puyallup Ave
Seattle, WA 98134
(253) 444-9781
Seattle, WA 98134
(253) 444-9781
Gr: 9-12 | 110 students Student-teacher ratio: 10:1 Minority enrollment: 87%
Rank: #1111.
Intergenerational High School
Magnet School
Charter School
Charter School
(Math: ≤20% | Reading: ≥50%)
Rank:
Rank:
3/
Bottom 50%10
1 Bellis Fair Parkway, # 104
Bellingham, WA 98226
(360) 927-1119
Bellingham, WA 98226
(360) 927-1119
Gr: 9-12 | 107 students Student-teacher ratio: 13:1 Minority enrollment: 50%
Rank: #1212.
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 | 121 students Student-teacher ratio: 9:1 Minority enrollment: 99%
Rank: n/an/a
Cascade Public Schools
Magnet School
Charter School
Charter School
22419 Pacific Highway South
Seattle, WA 98198
(253) 271-8629
Seattle, WA 98198
(253) 271-8629
Gr: 9-12 | 126 students Student-teacher ratio: 16:1 Minority enrollment: 90%
Rank: n/an/a
Impact Black River Elementary School
Charter School
16950 116th Ave Se
Renton, WA 98058
(206) 712-7640
Renton, WA 98058
(206) 712-7640
Gr: K-5 | 209 students Student-teacher ratio: 16:1 Minority enrollment: 88%
Rank: n/an/a
Impact Public Schools
Charter School
1301 E 34th Street
Tacoma, WA 98404
(206) 769-3429
Tacoma, WA 98404
(206) 769-3429
Gr: PK-5 | 232 students Student-teacher ratio: 14:1 Minority enrollment: 78%
Rank: n/an/a
Impact Salish Sea Elementary School
Charter School
3900 Holly Park Dr South
Seattle, WA 98118
(206) 712-7640
Seattle, WA 98118
(206) 712-7640
Gr: K-5 | 385 students Student-teacher ratio: 15:1 Minority enrollment: 93%
Rank: n/an/a
Rooted School Washington
Charter School
10401 Ne Fourth Plain Blvd, St
Vancouver, WA 98662
(360) 200-8979
Vancouver, WA 98662
(360) 200-8979
Gr: 9-12 | 58 students Student-teacher ratio: 10:1 Minority enrollment: 52%
Frequently Asked Questions
What are the top-ranked charter public schools in Washington?
The top-ranked charter public schools in Washington include Impact Public Schools, Spokane International Academy and Catalyst Public Schools.
How many charter public schools are located in Washington?
17 charter public schools are located in Washington.
What is the racial composition of students in Washington?
Washington charter public schools minority enrollment is 65% of the student body (majority Black and Hispanic), which is more than the Washington public schools average of 53% (majority Hispanic).
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.