| Business | Phone |
| Wahluke High School 502 N Boundary Ave, Mattawa 99349 | (509) 932-4477 |
| Wahluke School District 411 E Saddle Mountain Dr, Mattawa 99349 | (509) 932-4565 |
| Mattawa Elementary School 400 N Boundary Ave, Mattawa 99349 | (509) 932-4433 |
| Mattawa Middle School 511 E Saddlemountain Dr, Mattawa 99349 | (509) 932-4455 |
| Morris Schott Middle School Mattawa 99349 | (509) 932-4082 |