| Beach Street Middle School | New York | 6-8 | Suburban |
| Belmont Ridge Middle School | Virginia | 6-8 | Suburban |
| Custer Baker Intermediate School | Indiana | 5-6 | Suburban |
| Dorseyville Middle School | Pennsylvania | 6-8 | Suburban |
| Gum Spring Middle School | Virginia | 6-8 | Suburban |
| JL Simpson Middle School | Virginia | 6-8 | Suburban |
| Lunsford Middle School | Virginia | 6-8 | Suburban |
| Miguel Juarez Middle School | Illinois | 6-8 | Urban |
| Phoenix Middle School | Ohio | 7-8 | Suburban |
| R.L. Stevenson Middle School | Hawaii | 6-8 | Urban |
| Readington Middle School | New Jersey | 6-8 | Suburban |
| Ridgedale Middle School | New Jersey | 6-8 | Suburban |
| Smyrna Middle School | Tennessee | 6-8 | Suburban |
| Tomahawk Creek Middle School | Virginia | 6-8 | Suburban |
| Udall Road Middle School | New York | 6-8 | Suburban |
| Upson-Lee Middle School | Georgia | 6-8 | Rural |