| Preston Plains School | 5.0 |
129 | 86.8% | 3.1% | - | 3.1% | 2.3% |
| Leonard J. Tyl Middle School | 5.2 |
638 | 68.2% | 8.6% | 3.9% | 2.0% | 9.9% |
| Teachers' Memorial Middle School | 5.6 |
494 | 31.4% | 24.9% | 18.8% | 1.2% | 14.4% |
| Kelly Middle School | 6.6 |
624 | 41.0% | 25.8% | 19.4% | 1.1% | 4.8% |
| Bennie Dover Jackson Middle School | 6.8 |
571 | 14.0% | 50.8% | 29.9% | 0.4% | 1.4% |
| Interdistrict School For Arts And Communication | 6.8 |
191 | 26.7% | 43.5% | 27.2% | 2.1% | 0.5% |
| Clark Lane Middle School | 7.6 |
683 | 80.8% | 6.1% | 5.0% | 1.2% | 6.6% |
| Fitch Middle School | 7.6 |
407 | 59.5% | 15.7% | 14.7% | 1.5% | 5.7% |
| West Side Middle School | 7.8 |
268 | 43.3% | 25.4% | 22.8% | 2.6% | 4.5% |
| Carl C. Cutler Middle School | 8.1 |
355 | 81.1% | 5.4% | 4.2% | 1.4% | 6.5% |
| Mystic Middle School | 9.1 |
421 | 96.2% | 1.9% | - | - | - |
| Wheeler Middle School | 9.4 |
181 | 89.0% | 2.8% | 3.3% | - | - |
| East Lyme Middle School | 10.3 |
854 | 82.3% | 3.5% | 2.8% | 0.1% | 10.7% |
| Griswold Middle School | 11.1 |
586 | 87.9% | 4.9% | 3.8% | 0.5% | 2.0% |
| Pawcatuck Middle School | 12.9 |
353 | 94.6% | 3.4% | 0.3% | 1.1% | 0.3% |
| Dual Language Arts Academy/academia Bilingue De La | 13.8 |
82 | 25.6% | 56.1% | 11.0% | 1.2% | 2.4% |
| Lebanon Middle School | 14.9 |
386 | 92.7% | 2.3% | - | 3.6% | 1.3% |
| William J. Johnston Middle School | 15.6 |
700 | 88.7% | 4.6% | 3.3% | 1.0% | 2.0% |
| Lyme-old Lyme Middle School | 16.3 |
350 | 92.6% | 2.0% | - | - | 4.3% |
| Plainfield Central Middle School | 17.5 |
595 | 89.2% | 4.4% | 3.0% | 1.8% | 1.5% |
| Plainfield Memorial School | 17.6 |
407 | 84.5% | 6.4% | 4.7% | 1.5% | 2.7% |
| Dr. Helen Baldwin Middle School | 17.7 |
217 | 91.2% | 6.0% | 1.4% | - | 0.5% |
| Old Saybrook Middle School | 19.4 |
584 | 84.2% | 5.0% | 2.2% | - | 5.8% |
| Nathan Hale-ray Middle School | 19.7 |
497 | 92.4% | 3.6% | 0.8% | 0.4% | 1.4% |
| Windham Middle School | 20.5 |
986 | 25.4% | 64.6% | 6.7% | 0.9% | 1.1% |
| John Winthrop Middle School | 21.0 |
338 | 90.5% | 6.2% | 1.8% | 0.3% | 0.9% |
| Rham Middle School | 21.3 |
609 | 96.6% | 1.5% | 0.7% | - | 1.3% |
| Westbrook Middle School | 22.7 |
290 | 89.3% | 6.9% | 0.7% | 0.3% | 0.7% |
| Brooklyn Middle School | 24.1 |
396 | 90.7% | 3.0% | 1.8% | 0.3% | 2.3% |
| Center School | 24.1 |
303 | 91.4% | 4.0% | 1.0% | - | 3.3% |
| Mansfield Middle School School | 24.1 |
575 | 73.9% | 11.3% | 2.6% | - | 7.5% |
| East Hampton Middle School | 24.9 |
469 | 91.5% | 4.9% | 0.6% | - | 1.9% |
