Best traditional public schools in Seattle School District No. 1 (2025)
District-run public schools. Ranked by the Success Index (US) from official American data; 92 schools in Seattle School District No. 1, Washington. Rank positions shown on each profile are within United States and Washington.
- Elementary Schools in Seattle School District No. 1
- Middle Schools in Seattle School District No. 1
- High Schools in Seattle School District No. 1
- Schools by Math Proficiency in Seattle School District No. 1
- Schools by Reading Proficiency in Seattle School District No. 1
- Lowest Student–Teacher Ratio in Seattle School District No. 1
- Largest Schools in Seattle School District No. 1
- 189Stephen Decatur Elementary SchoolSeattle · Public Elementary97.5% Math proficiency · 188 students
- 288John Hay Elementary SchoolSeattle · Public Elementary74% Math proficiency · 257 students
- 388Queen Anne ElementarySeattle · Public Elementary72% Math proficiency · 159 students
- 488McGilvra Elementary SchoolSeattle · Public Elementary77% Math proficiency · 194 students
- 588McDonald International SchoolSeattle · Public Elementary86% Math proficiency · 443 students
- 688Montlake Elementary SchoolSeattle · Public Elementary77% Math proficiency · 170 students
- 787Magnolia Elementary SchoolSeattle · Public Elementary12.8% Free/reduced-price lunch · 320 students
- 887West Woodland Elementary SchoolSeattle · Public Elementary80% Math proficiency · 355 students
- 987Cascadia ElementarySeattle · Public Elementary99.5% Math proficiency · 531 students
- 1087Lawton Elementary SchoolSeattle · Public Elementary83% Math proficiency · 309 students
- 1187North Beach Elementary SchoolSeattle · Public Elementary77% Math proficiency · 344 students
- 1286Frantz Coe Elementary SchoolSeattle · Public Elementary88% Math proficiency · 467 students
- 1386B F Day Elementary SchoolSeattle · Public Elementary77% Math proficiency · 394 students
- 1486Loyal Heights Elementary SchoolSeattle · Public Elementary77% Math proficiency · 527 students
- 1585Greenwood Elementary SchoolSeattle · Public Elementary77% Math proficiency · 339 students
- 1685Wedgwood Elementary SchoolSeattle · Public Elementary81% Math proficiency · 333 students
- 1784Genesee Hill ElementarySeattle · Public Elementary78% Math proficiency · 451 students
- 1884View Ridge Elementary SchoolSeattle · Public Elementary82% Math proficiency · 290 students
- 1984John Stanford International SchoolSeattle · Public Elementary83% Math proficiency · 422 students
- 2084Bryant Elementary SchoolSeattle · Public Elementary79% Math proficiency · 470 students
- 2184Fairmount Park Elementary SchoolSeattle · Public Elementary82% Math proficiency · 357 students
- 2283Catharine Blaine K-8 SchoolSeattle · Public Elementary77% Math proficiency · 438 students
- 2383Hamilton International Middle SchoolSeattle · Public Middle81% Math proficiency · 983 students
- 2483Daniel Bagley Elementary SchoolSeattle · Public Elementary77% Math proficiency · 337 students
- 2582Hazel Wolf K-8Seattle · Public Elementary72% Math proficiency · 660 students
- 2682Cedar Park Elementary SchoolSeattle · Public Elementary69.5% Math proficiency · 254 students
- 2781Adams Elementary SchoolSeattle · Public Elementary70% Math proficiency · 285 students
- 2881Eckstein Middle SchoolSeattle · Public Middle74% Math proficiency · 1,024 students
- 2981Whitman Middle SchoolSeattle · Public Middle74% Math proficiency · 633 students
- 3081Whittier Elementary SchoolSeattle · Public Elementary67% Math proficiency · 346 students
- 3180Madison Middle SchoolSeattle · Public Middle72% Math proficiency · 1,017 students
- 3279Ballard High SchoolSeattle · Public High71% Math proficiency · 1,697 students
- 3379Laurelhurst Elementary SchoolSeattle · Public Elementary72% Math proficiency · 272 students
- 3479Thurgood Marshall ElementarySeattle · Public Elementary76% Math proficiency · 500 students
- 3579Gatewood Elementary SchoolSeattle · Public Elementary72% Math proficiency · 400 students
- 3679Alki Elementary SchoolSeattle · Public Elementary72% Math proficiency · 269 students
- 3778McClure Middle SchoolSeattle · Public Middle71% Math proficiency · 474 students
- 3878Roosevelt High SchoolSeattle · Public High68% Math proficiency · 1,542 students
- 3978Green Lake Elementary SchoolSeattle · Public Elementary67% Math proficiency · 367 students
- 4078The Center SchoolSeattle · Public High44.5% Math proficiency · 165 students
- 4177Stevens Elementary SchoolSeattle · Public Elementary67% Math proficiency · 150 students
- 4277Lafayette Elementary SchoolSeattle · Public Elementary67% Math proficiency · 532 students
- 4375Robert Eagle Staff Middle SchoolSeattle · Public Middle66% Math proficiency · 729 students
- 4475Ingraham High SchoolSeattle · Public High67% Math proficiency · 1,391 students
- 4575Olympic View Elementary SchoolSeattle · Public Elementary62% Math proficiency · 341 students
- 4674Jane Addams Middle SchoolSeattle · Public Middle67% Math proficiency · 824 students
- 4774West Seattle High SchoolSeattle · Public High56% Math proficiency · 1,479 students
- 4873Olympic Hills Elementary SchoolSeattle · Public Elementary72% Math proficiency · 486 students
- 4972Sacajawea Elementary SchoolSeattle · Public Elementary57% Math proficiency · 220 students
- 5070Garfield High SchoolSeattle · Public High69% Math proficiency · 1,507 students
- 5170Beacon Hill International SchoolSeattle · Public Elementary71% Math proficiency · 348 students
- 5270Louisa Boren STEM K-8Seattle · Public Elementary60% Math proficiency · 437 students
- 5369Maple Elementary SchoolSeattle · Public Elementary63% Math proficiency · 401 students
- 5468Arbor Heights Elementary SchoolSeattle · Public Elementary56% Math proficiency · 495 students
- 5568Washington Middle SchoolSeattle · Public Middle70% Math proficiency · 566 students
- 5667Hawthorne Elementary SchoolSeattle · Public Elementary52% Math proficiency · 393 students
- 5767Madrona K-5 SchoolSeattle · Public Elementary57% Math proficiency · 213 students
- 5865Mercer International Middle SchoolSeattle · Public Middle61% Math proficiency · 753 students
- 5964Nathan Hale High SchoolSeattle · Public High49% Math proficiency · 1,052 students
- 6064Graham Hill Elementary SchoolSeattle · Public Elementary57% Math proficiency · 266 students
- 6164Lincoln High SchoolSeattle · Public High11.6% Free/reduced-price lunch · 1,770 students
- 6264James Baldwin Elementary SchoolSeattle · Public Elementary52% Math proficiency · 262 students
- 6362Wing Luke Elementary SchoolSeattle · Public Elementary62% Math proficiency · 334 students
- 6460Cleveland High School STEMSeattle · Public High50% Math proficiency · 875 students
- 6560John Rogers Elementary SchoolSeattle · Public Elementary57% Math proficiency · 248 students
- 6659West Seattle Elementary SchoolSeattle · Public Elementary58% Math proficiency · 376 students
- 6759Kimball Elementary SchoolSeattle · Public Elementary50% Math proficiency · 384 students
- 6859Leschi Elementary SchoolSeattle · Public Elementary42% Math proficiency · 240 students
- 6958Edmonds S. Meany Middle SchoolSeattle · Public Middle49% Math proficiency · 504 students
- 7056Franklin High SchoolSeattle · Public High54% Math proficiency · 1,277 students
- 7156Sand Point ElementarySeattle · Public Elementary47% Math proficiency · 173 students
- 7255Viewlands Elementary SchoolSeattle · Public Elementary47% Math proficiency · 290 students
- 7354Middle College High SchoolSeattle · Public High24.5% Math proficiency · 93 students
- 7454John Muir Elementary SchoolSeattle · Public Elementary42% Math proficiency · 308 students
- 7553Broadview-Thomson K-8 SchoolSeattle · Public Elementary43% Math proficiency · 581 students
- 7652Chief Sealth International High SchoolSeattle · Public High41% Math proficiency · 1,184 students
- 7752South Shore PK-8 SchoolSeattle · Public Elementary47% Math proficiency · 546 students
- 7852Rainier View Elementary SchoolSeattle · Public Elementary52% Math proficiency · 167 students
- 7951David T. Denny International Middle SchoolSeattle · Public Middle49% Math proficiency · 722 students
- 8051Lowell Elementary SchoolSeattle · Public Elementary42% Math proficiency · 392 students
- 8147Dunlap Elementary SchoolSeattle · Public Elementary37% Math proficiency · 261 students
- 8246Dearborn Park International SchoolSeattle · Public Elementary42% Math proficiency · 340 students
- 8344Aki Kurose Middle SchoolSeattle · Public Middle43% Math proficiency · 817 students
- 8441Rising Star Elementary SchoolSeattle · Public Elementary37% Math proficiency · 324 students
- 8539Highland Park Elementary SchoolSeattle · Public Elementary32% Math proficiency · 300 students
- 8636Roxhill Elementary SchoolSeattle · Public Elementary32% Math proficiency · 289 students
- 8734Concord International SchoolSeattle · Public Elementary22% Math proficiency · 268 students
- 8834Rainier Beach High SchoolSeattle · Public High27% Math proficiency · 854 students
- 8932Martin Luther King Jr. Elementary SchoolSeattle · Public Elementary27% Math proficiency · 289 students
- 9032Sanislo Elementary SchoolSeattle · Public Elementary32% Math proficiency · 145 students
- 9129Bailey Gatzert Elementary SchoolSeattle · Public Elementary32% Math proficiency · 402 students
- 9224Emerson Elementary SchoolSeattle · Public Elementary27% Math proficiency · 398 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Stephen Decatur Elementary School Seattle · Elementary · Grades K–5 | Public | 89.0 Top 5% | 97.5% Math proficiency | 188 |
| 2 | John Hay Elementary School Seattle · Elementary · Grades K–5 | Public | 88.2 Top 5% | 74% Math proficiency | 257 |
| 3 | Queen Anne Elementary Seattle · Elementary · Grades K–5 | Public | 88.2 Top 5% | 72% Math proficiency | 159 |
| 4 | McGilvra Elementary School Seattle · Elementary · Grades K–5 | Public | 88.1 Top 5% | 77% Math proficiency | 194 |
| 5 | McDonald International School Seattle · Elementary · Grades K–5 | Public | 87.7 Top 5% | 86% Math proficiency | 443 |
| 6 | Montlake Elementary School Seattle · Elementary · Grades K–5 | Public | 87.6 Top 5% | 77% Math proficiency | 170 |
| 7 | Magnolia Elementary School Seattle · Elementary · Grades K–5 | Public | 86.9 Top 5% | 12.8% Free/reduced-price lunch | 320 |
| 8 | West Woodland Elementary School Seattle · Elementary · Grades K–5 | Public | 86.8 Top 5% | 80% Math proficiency | 355 |
| 9 | Cascadia Elementary Seattle · Elementary · Grades K–5 | Public | 86.7 Top 5% | 99.5% Math proficiency | 531 |
| 10 | Lawton Elementary School Seattle · Elementary · Grades K–5 | Public | 86.7 Top 5% | 83% Math proficiency | 309 |
| 11 | North Beach Elementary School Seattle · Elementary · Grades PK–5 | Public | 86.5 Top 5% | 77% Math proficiency | 344 |
| 12 | Frantz Coe Elementary School Seattle · Elementary · Grades K–5 | Public | 86.4 Top 5% | 88% Math proficiency | 467 |
| 13 | B F Day Elementary School Seattle · Elementary · Grades PK–5 | Public | 86.1 Top 5% | 77% Math proficiency | 394 |
| 14 | Loyal Heights Elementary School Seattle · Elementary · Grades K–5 | Public | 86.1 Top 5% | 77% Math proficiency | 527 |
| 15 | Greenwood Elementary School Seattle · Elementary · Grades PK–5 | Public | 85.4 Top 5% | 77% Math proficiency | 339 |
| 16 | Wedgwood Elementary School Seattle · Elementary · Grades K–5 | Public | 84.7 Top 10% | 81% Math proficiency | 333 |
| 17 | Genesee Hill Elementary Seattle · Elementary · Grades K–5 | Public | 84.4 Top 10% | 78% Math proficiency | 451 |
| 18 | View Ridge Elementary School Seattle · Elementary · Grades PK–5 | Public | 84.4 Top 10% | 82% Math proficiency | 290 |
| 19 | John Stanford International School Seattle · Elementary · Grades K–5 | Public | 84.3 Top 10% | 83% Math proficiency | 422 |
| 20 | Bryant Elementary School Seattle · Elementary · Grades K–5 | Public | 84.0 Top 10% | 79% Math proficiency | 470 |
| 21 | Fairmount Park Elementary School Seattle · Elementary · Grades PK–5 | Public | 83.6 Top 10% | 82% Math proficiency | 357 |
| 22 | Catharine Blaine K-8 School Seattle · Elementary · Grades K–8 | Public | 83.1 Top 10% | 77% Math proficiency | 438 |
| 23 | Hamilton International Middle School Seattle · Middle · Grades 6–8 | Public | 82.9 Top 10% | 81% Math proficiency | 983 |
| 24 | Daniel Bagley Elementary School Seattle · Elementary · Grades K–5 | Public | 82.6 Top 10% | 77% Math proficiency | 337 |
| 25 | Hazel Wolf K-8 Seattle · Elementary · Grades K–8 | Public | 81.6 Top 10% | 72% Math proficiency | 660 |
| 26 | Cedar Park Elementary School Seattle · Elementary · Grades PK–5 | Public | 81.5 Top 10% | 69.5% Math proficiency | 254 |
| 27 | Adams Elementary School Seattle · Elementary · Grades K–5 | Public | 81.0 Top 10% | 70% Math proficiency | 285 |
| 28 | Eckstein Middle School Seattle · Middle · Grades 6–8 | Public | 80.7 Top 10% | 74% Math proficiency | 1,024 |
| 29 | Whitman Middle School Seattle · Middle · Grades 6–8 | Public | 80.6 Top 10% | 74% Math proficiency | 633 |
| 30 | Whittier Elementary School Seattle · Elementary · Grades K–5 | Public | 80.6 Top 10% | 67% Math proficiency | 346 |
| 31 | Madison Middle School Seattle · Middle · Grades 6–8 | Public | 79.5 Top 25% | 72% Math proficiency | 1,017 |
| 32 | Ballard High School Seattle · High · Grades 9–12 | Public | 79.4 Top 10% | 71% Math proficiency | 1,697 |
| 33 | Laurelhurst Elementary School Seattle · Elementary · Grades K–5 | Public | 79.3 Top 25% | 72% Math proficiency | 272 |
| 34 | Thurgood Marshall Elementary Seattle · Elementary · Grades PK–5 | Public | 79.3 Top 25% | 76% Math proficiency | 500 |
| 35 | Gatewood Elementary School Seattle · Elementary · Grades K–5 | Public | 79.1 Top 25% | 72% Math proficiency | 400 |
| 36 | Alki Elementary School Seattle · Elementary · Grades PK–5 | Public | 78.8 Top 25% | 72% Math proficiency | 269 |
| 37 | McClure Middle School Seattle · Middle · Grades 6–8 | Public | 78.4 Top 25% | 71% Math proficiency | 474 |
| 38 | Roosevelt High School Seattle · High · Grades 9–12 | Public | 78.3 Top 10% | 68% Math proficiency | 1,542 |
| 39 | Green Lake Elementary School Seattle · Elementary · Grades PK–5 | Public | 78.1 Top 25% | 67% Math proficiency | 367 |
| 40 | The Center School Seattle · High · Grades 9–12 | Public | 77.6 Top 10% | 44.5% Math proficiency | 165 |
| 41 | Stevens Elementary School Seattle · Elementary · Grades K–5 | Public | 76.6 Top 25% | 67% Math proficiency | 150 |
| 42 | Lafayette Elementary School Seattle · Elementary · Grades PK–5 | Public | 76.5 Top 25% | 67% Math proficiency | 532 |
| 43 | Robert Eagle Staff Middle School Seattle · Middle · Grades 6–8 | Public | 75.1 Top 25% | 66% Math proficiency | 729 |
| 44 | Ingraham High School Seattle · High · Grades 9–12 | Public | 74.6 Top 25% | 67% Math proficiency | 1,391 |
| 45 | Olympic View Elementary School Seattle · Elementary · Grades K–5 | Public | 74.5 Top 25% | 62% Math proficiency | 341 |
| 46 | Jane Addams Middle School Seattle · Middle · Grades 6–8 | Public | 74.1 Top 25% | 67% Math proficiency | 824 |
| 47 | West Seattle High School Seattle · High · Grades 9–12 | Public | 73.5 Top 25% | 56% Math proficiency | 1,479 |
| 48 | Olympic Hills Elementary School Seattle · Elementary · Grades PK–5 | Public | 72.6 Top 25% | 72% Math proficiency | 486 |
| 49 | Sacajawea Elementary School Seattle · Elementary · Grades PK–5 | Public | 72.2 Top 25% | 57% Math proficiency | 220 |
| 50 | Garfield High School Seattle · High · Grades 9–12 | Public | 70.3 Top 25% | 69% Math proficiency | 1,507 |
| 51 | Beacon Hill International School Seattle · Elementary · Grades K–5 | Public | 70.2 Top 25% | 71% Math proficiency | 348 |
| 52 | Louisa Boren STEM K-8 Seattle · Elementary · Grades PK–8 | Public | 70.2 Top 25% | 60% Math proficiency | 437 |
| 53 | Maple Elementary School Seattle · Elementary · Grades K–5 | Public | 69.4 Top 25% | 63% Math proficiency | 401 |
| 54 | Arbor Heights Elementary School Seattle · Elementary · Grades PK–5 | Public | 68.2 Top 25% | 56% Math proficiency | 495 |
| 55 | Washington Middle School Seattle · Middle · Grades 6–8 | Public | 67.8 Top 25% | 70% Math proficiency | 566 |
| 56 | Hawthorne Elementary School Seattle · Elementary · Grades PK–5 | Public | 67.2 Top 50% | 52% Math proficiency | 393 |
| 57 | Madrona K-5 School Seattle · Elementary · Grades K–5 | Public | 66.9 Top 50% | 57% Math proficiency | 213 |
| 58 | Mercer International Middle School Seattle · Middle · Grades 6–8 | Public | 64.6 Top 50% | 61% Math proficiency | 753 |
| 59 | Nathan Hale High School Seattle · High · Grades 9–12 | Public | 64.1 Top 50% | 49% Math proficiency | 1,052 |
| 60 | Graham Hill Elementary School Seattle · Elementary · Grades PK–5 | Public | 64.0 Top 50% | 57% Math proficiency | 266 |
| 61 | Lincoln High School Seattle · High · Grades 9–12 | Public | 63.7 Top 50% | 11.6% Free/reduced-price lunch | 1,770 |
| 62 | James Baldwin Elementary School Seattle · Elementary · Grades PK–5 | Public | 63.5 Top 50% | 52% Math proficiency | 262 |
| 63 | Wing Luke Elementary School Seattle · Elementary · Grades PK–5 | Public | 62.1 Top 50% | 62% Math proficiency | 334 |
| 64 | Cleveland High School STEM Seattle · High · Grades 9–12 | Public | 59.9 Top 50% | 50% Math proficiency | 875 |
| 65 | John Rogers Elementary School Seattle · Elementary · Grades K–5 | Public | 59.5 Top 50% | 57% Math proficiency | 248 |
| 66 | West Seattle Elementary School Seattle · Elementary · Grades PK–5 | Public | 59.0 Top 50% | 58% Math proficiency | 376 |
| 67 | Kimball Elementary School Seattle · Elementary · Grades K–5 | Public | 58.6 Top 50% | 50% Math proficiency | 384 |
| 68 | Leschi Elementary School Seattle · Elementary · Grades K–5 | Public | 58.5 Top 50% | 42% Math proficiency | 240 |
| 69 | Edmonds S. Meany Middle School Seattle · Middle · Grades 6–8 | Public | 58.2 Top 50% | 49% Math proficiency | 504 |
| 70 | Franklin High School Seattle · High · Grades 9–12 | Public | 56.3 Top 50% | 54% Math proficiency | 1,277 |
| 71 | Sand Point Elementary Seattle · Elementary · Grades PK–5 | Public | 56.2 Top 50% | 47% Math proficiency | 173 |
| 72 | Viewlands Elementary School Seattle · Elementary · Grades PK–5 | Public | 54.9 Top 50% | 47% Math proficiency | 290 |
| 73 | Middle College High School Seattle · High · Grades 9–12 | Public | 54.2 Top 50% | 24.5% Math proficiency | 93 |
| 74 | John Muir Elementary School Seattle · Elementary · Grades K–5 | Public | 53.9 Top 50% | 42% Math proficiency | 308 |
| 75 | Broadview-Thomson K-8 School Seattle · Elementary · Grades PK–8 | Public | 53.1 Top 50% | 43% Math proficiency | 581 |
| 76 | Chief Sealth International High School Seattle · High · Grades 9–12 | Public | 52.4 Top 50% | 41% Math proficiency | 1,184 |
| 77 | South Shore PK-8 School Seattle · Elementary · Grades PK–8 | Public | 52.4 Top 50% | 47% Math proficiency | 546 |
| 78 | Rainier View Elementary School Seattle · Elementary · Grades PK–5 | Public | 52.1 Top 50% | 52% Math proficiency | 167 |
| 79 | David T. Denny International Middle School Seattle · Middle · Grades 6–8 | Public | 51.3 Top 50% | 49% Math proficiency | 722 |
| 80 | Lowell Elementary School Seattle · Elementary · Grades PK–5 | Public | 51.3 Top 50% | 42% Math proficiency | 392 |
| 81 | Dunlap Elementary School Seattle · Elementary · Grades PK–5 | Public | 46.8 Lower 50% | 37% Math proficiency | 261 |
| 82 | Dearborn Park International School Seattle · Elementary · Grades PK–5 | Public | 45.5 Lower 50% | 42% Math proficiency | 340 |
| 83 | Aki Kurose Middle School Seattle · Middle · Grades 6–8 | Public | 43.8 Lower 50% | 43% Math proficiency | 817 |
| 84 | Rising Star Elementary School Seattle · Elementary · Grades PK–5 | Public | 41.4 Lower 50% | 37% Math proficiency | 324 |
| 85 | Highland Park Elementary School Seattle · Elementary · Grades PK–5 | Public | 38.6 Lower 50% | 32% Math proficiency | 300 |
| 86 | Roxhill Elementary School Seattle · Elementary · Grades PK–5 | Public | 36.3 Lower 50% | 32% Math proficiency | 289 |
| 87 | Concord International School Seattle · Elementary · Grades PK–5 | Public | 34.2 Lower 50% | 22% Math proficiency | 268 |
| 88 | Rainier Beach High School Seattle · High · Grades 9–12 | Public | 33.7 Lower 50% | 27% Math proficiency | 854 |
| 89 | Martin Luther King Jr. Elementary School Seattle · Elementary · Grades PK–5 | Public | 31.9 Lower 50% | 27% Math proficiency | 289 |
| 90 | Sanislo Elementary School Seattle · Elementary · Grades K–5 | Public | 31.9 Lower 50% | 32% Math proficiency | 145 |
| 91 | Bailey Gatzert Elementary School Seattle · Elementary · Grades PK–5 | Public | 28.6 Lower 50% | 32% Math proficiency | 402 |
| 92 | Emerson Elementary School Seattle · Elementary · Grades PK–5 | Public | 23.5 Lower 50% | 27% Math proficiency | 398 |
Stephen Decatur Elementary School in Seattle leads the 2025 list of traditional public schools in Seattle School District No. 1 with a Success Index (US) of 89.0. Of the 92 schools shown, 92 are public.
For the full picture see the wider Washington traditional public schools rankings, every school on the Seattle School District No. 1 page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best public school in Seattle School District No. 1?
Stephen Decatur Elementary School in Seattle, Washington ranks first among traditional public schools in Seattle School District No. 1 with a Success Index (US) of 89.0 out of 100 (Enrollment: 188).
How are traditional public schools in Seattle School District No. 1 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.