| Ashland-Greenwood Middle School | Nebraska | 6-8 | Rural |
| Belmont Ridge Middle School | Virginia | 6-8 | Suburban |
| Benjamin Tasker Middle School | Maryland | | Suburban |
| Brambleton Middle School | Virginia | 6-8 | Suburban |
| Cloverleaf Middle School | Ohio | 6-8 | Rural |
| Dorseyville Middle School | Pennsylvania | 6-8 | Suburban |
| Farmwell Station Middle School | Virginia | 6-8 | Suburban |
| Gum Spring Middle School | Virginia | 6-8 | Suburban |
| JL Simpson Middle School | Virginia | 6-8 | Suburban |
| Laveen Elementary School | Arizona | PreK-8 | Urban |
| Mattawan Middle School | Michigan | 6-8 | Rural |
| New Hope-Solebury Middle School | Pennsylvania | 6-8 | Suburban |
| Oceanside Middle School | New York | 7-8 | Suburban |
| Ridgedale Middle School | New Jersey | 6-8 | Suburban |
| Walworth Barbour American International School | | 6-8 | International |
| Watertown Middle School | South Dakota | 7-8 | Rural |
| Winston Campus Jr. High School | Illinois | 7-8 | Suburban |
| Woodmere Middle School | New York | 6-8 | Suburban |