Best charter schools in Anchorage (2025)
Publicly funded charter schools. Ranked by the Success Index (US) from official American data; 6 schools in Anchorage, Alaska. Rank positions shown on each profile are within United States and Alaska.
- 165Aquarian Charter SchoolAnchorage · Charter Elementary60% Math proficiency · 365 students
- 261Rilke Schule Charter SchoolAnchorage · Charter Elementary59% Math proficiency · 485 students
- 341Winterberry SchoolAnchorage · Charter Elementary32% Math proficiency · 264 students
- 421Highland Academy CharterAnchorage · Charter High22% Math proficiency · 200 students
- 521Alaska Native Cultural Charter SchoolAnchorage · Charter Elementary32% Math proficiency · 357 students
- 620Anchorage STrEaM AcademyAnchorage · Charter Middle22% Math proficiency · 183 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Aquarian Charter School Anchorage · Elementary · Grades K–6 | Charter | 65.1 Top 50% | 60% Math proficiency | 365 |
| 2 | Rilke Schule Charter School Anchorage · Elementary · Grades K–8 | Charter | 61.2 Top 50% | 59% Math proficiency | 485 |
| 3 | Winterberry School Anchorage · Elementary · Grades K–8 | Charter | 41.0 Lower 50% | 32% Math proficiency | 264 |
| 4 | Highland Academy Charter Anchorage · High · Grades 6–12 | Charter | 21.0 Lower 50% | 22% Math proficiency | 200 |
| 5 | Alaska Native Cultural Charter School Anchorage · Elementary · Grades PK–8 | Charter | 20.5 Lower 50% | 32% Math proficiency | 357 |
| 6 | Anchorage STrEaM Academy Anchorage · Middle · Grades 6–8 | Charter | 20.4 Lower 50% | 22% Math proficiency | 183 |
Aquarian Charter School in Anchorage leads the 2025 list of charter schools in Anchorage with a Success Index (US) of 65.1. Of the 6 schools shown, 6 are charter.
For the full picture see the wider Alaska charter schools rankings, every school on the Anchorage page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best charter school in Anchorage?
Aquarian Charter School in Anchorage, Alaska ranks first among charter schools in Anchorage with a Success Index (US) of 65.1 out of 100 (Enrollment: 365).
How are charter schools in Anchorage ranked?
Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.