| Enrollment | Final 2008-10 | ||
| Classification | |||
| 1803.34 | 4A | Greater St. Helens 4A | |
| Battle Ground HS | 1679.87 | 4A | |
| Evergreen HS | 1648.48 | 4A | |
| Mountain View HS | 1611.41 | 4A | |
| Skyview HS | 1580.54 | 4A | |
| Kelso HS | 1292.75 | 4A | |
| Camas HS | 1253.13 | 3A | Greater St. Helens 3A |
| Fort Vancouver HS | 1228.74 | 3A | |
| Hudson's Bay HS | 1224.15 | 3A | |
| Prairie HS | 1156.5 | 3A | |
| Columbia River HS | 1064.57 | 3A | |
| Union HS | 916.02 | 3A (opt-up) | |
| Aberdeen HS | 907.88 | 2A | Evergreen |
| River Ridge HS | 900.02 | 2A | |
| Tumwater HS | 820.58 | 2A | |
| Centralia HS | 779.38 | 2A | |
| Black Hills HS | 737.68 | 2A | |
| W F West HS | 707.25 | 2A | |
| Elma HS | 545.75 | 2A | |
| Hoquiam HS | 501.13 | 2A | |
| R A Long HS | 837 | 2A | Greater St. Helens 2A |
| Mark Morris HS | 831 | 2A | |
| Washougal HS | 676.5 | 2A | |
| Woodland HS | 565 | 2A | |
| Hockinson HS | 520.5 | 2A | |
| Ridgefield HS | 479.5 | 2A | |
| Rochester HS | 406 | 1A | Evergreen |
| Tenino HS | 368 | 1A | |
| Montesano HS | 342.13 | 1A | |
| Forks HS | 285.63 | 1A | |
| Toledo HS | 264.38 | 1A | |
| Onalaska HS | 225.75 | 1A | |
| Rainier HS | 222.75 | 1A | |
| Winlock HS | 194.75 | 1A | |
| Castle Rock HS | 380.13 | 1A | Trico |
| LaCenter HS | 362.25 | 1A | |
| Stevenson HS | 271.38 | 1A | |
| Columbia HS (White Salmon) | 264.63 | 1A | |
| Ilwaco HS | 251.5 | 1A | |
| Kalama HS | 250.88 | 1A | |
| North Beach HS | 171.13 | 2B | Pacific 2B |
| Northwest Christian | 152.75 | 2B | |
| Ocosta HS | 148.25 | 2B | |
| South Bend HS | 136.88 | 2B | |
| Raymond HS | 128.75 | 2B | |
| Tacoma Baptist HS | 115.63 | 2B | |
| Willapa Valley HS | 97.25 | 2B | |
| Naselle HS | 90.63 | 2B | |
| Napavine HS | 176.88 | 2B | Central 2B |
| Toutle Lake HS | 164.13 | 2B | |
| Mossyrock HS | 162.5 | 2B | |
| White Pass HS | 158.63 | 2B | |
| Wahkiakum HS | 136.88 | 2B | |
| Adna HS | 125.25 | 2B | |
| Columbia Adventist | 110.88 | 2B | |
| Morton HS | 110.25 | 2B | |
| Vancouver Christian HS | 100.88 | 2B | |
| Pe Ell HS | 77.13 | 2B (opt-up) | |
| Lake Quinault HS | 69.13 | 1B | Pacific 1B |
| Oakville HS | 62.63 | 1B | |
| Three Rivers Christian | 57 | 1B | |
| Taholah HS | 54.25 | 1B | |
| Wishkah Valley HS | 53.88 | 1B | |
| WA School f/t Deaf | 47.38 | 1B | |
| Mary Knight HS | 41 | 1B | |
| North River HS | 21.38 | 1B | |
| King's Way Christian | 16.63 | 1B |