| Beach Street Middle School | New York | 6-8 | Suburban |
| Farmwell Station Middle School | Virginia | 6-8 | Suburban |
| Gilbert Middle School | Iowa | 6-8 | Suburban |
| JL Simpson Middle School | Virginia | 6-8 | Suburban |
| Kamehameha Schools | Hawaii | 7-8 | Urban |
| Mattawan Middle School | Michigan | 6-8 | Rural |
| Mayfield Middle School | Ohio | 6-8 | Suburban |
| R.L. Stevenson Middle School | Hawaii | 6-8 | Urban |
| Readington Middle School | New Jersey | 6-8 | Suburban |
| South Orangetown Middle School | New York | 6-8 | Suburban |
| Tomahawk Creek Middle School | Virginia | 6-8 | Suburban |
| Willard Middle School | Virginia | 6-8 | Suburban |
| Winston Campus Jr. High School | Illinois | 7-8 | Suburban |