| Name |
County |
| Mary Walker High School |
Stevens County |
| Marysville Arts and Technology High School |
Snohomish County |
| Marysville Getchell High School |
Snohomish County |
| Marysville Pilchuck High School |
Snohomish County |
| Mead Alternative High School |
Spokane County |
| Mead Senior High School |
Spokane County |
| Meadowdale High School |
Snohomish County |
| Medical Lake Alternative High School |
Spokane County |
| Medical Lake High School |
Spokane County |
| Mercer Island High School |
King County |
| Mercer Island High School |
King County |
| Meridian High School |
Whatcom County |
| Methow Valley Independent Learning Center |
Okanogan County |
| Middle College High School |
King County |
| Middle College High School - South Seattle Community College |
King County |
| Middle College High School at Seattle University |
King County |
| Middle College Simon Youth Academy |
King County |
| Monroe High School |
Snohomish County |
| Montesano Junior - Senior High School |
Grays Harbor County |
| Moses Lake High School |
Grant County |
| Mount Baker High School |
Whatcom County |
| Mount Rainier High School |
King County |
| Mount Rainier Lutheran High School |
Pierce County |
| Mount Si High School |
King County |
| Mount Spokane High School |
Spokane County |
| Mount Tahoma High School |
Pierce County |
| Mount Vernon High School |
Skagit County |
| Mountain View High School |
Clark County |
| Mountlake Terrace High School |
Snohomish County |
| Naches Valley High School |
Yakima County |
| Naselle Youth Camp School |
Pacific County |
| Nathan Hale High School |
King County |
| Neah Bay High School |
Clallam County |
| New Horizons High School |
Franklin County |
| New Market High School |
Thurston County |
| New Market Vocational Skills Center |
Thurston County |
| New Start High School |
King County |
| Newport Alternative High School |
Pend Oreille County |
| Newport High School |
Pend Oreille County |
| Newport High School |
King County |
| Nooksack Valley High School |
Whatcom County |
| North Beach Junior / Senior High School |
Grays Harbor County |
| North Central High School |
Spokane County |
| North Creek High School |
Snohomish County |
| North Kitsap High School |
Kitsap County |
| North Mason High School |
Mason County |
| North Thurston High School |
Thurston County |
| Northwest Learning Center |
Snohomish County |
| Northwest Yeshiva High School |
King County |
| Northwest Yeshiva High School |
King County |
| Nova High School |
King County |
| Oak Harbor High School |
Island County |
| O'Dea High School |
King County |
| Odyssey - The Essential School |
King County |
| Okanogan Alternative High School |
Okanogan County |
| Okanogan County Juvenile Detention |
Okanogan County |
| Okanogan High School |
Okanogan County |
| Olympia High School |
Thurston County |
| Olympic High School |
Kitsap County |
| Omak Alternative High School |
Okanogan County |
| Omak High School |
Okanogan County |
| Onalaska High School |
Lewis County |
| Options High School |
Whatcom County |
| Orcas Island High School |
San Juan County |
| Orting High School |
Pierce County |
| Othello High School |
Adams County |
| Pace Alternative High School |
Yakima County |
| PALOUSE HIGH SCHOOL |
Whitman County |
| Palouse Junction High School |
Franklin County |
| Pasco Senior High School |
Franklin County |
| Peninsula High School |
Pierce County |
| Phoenix Alternative School |
Spokane County |
| Phoenix High School |
Benton County |
| Port Angeles High School |
Clallam County |
| Port Townsend High School |
Jefferson County |
