The PSUA generally services the following high schools in Clackamas, Multnomah, Washington and Yamhill Counties:
| SCHOOL | CLASSIFICATION | FIELDS | LIGHTS | OTHER |
| Aloha | 6A | Varsity (grass) | No | |
| Banks | Varsity (grass) | |||
| Barlow | 6A | |||
| Beaverton | 6A | Varsity (grass) | School under construction, limited parking | |
| Benson | 6A | Plays at Buckman Park | ||
| Central Catholic | 6A | Delta Park (grass) | YES | |
| Centennial | 5A | |||
| Century | 6A | Varsity (grass) | ||
| Clackamas | 6A | |||
| Corbett | 3A | |||
| David Douglas | 6A | |||
| Estacada | 4A | |||
| Faith Bible | 2A/1A | |||
| Forest Grove | 6A | Varsity (grass), JV (grass) | ||
| Franklin | 6A | Plays at Clinton Park, Irv Lind Stadium | ||
| Gladstone | 4A | Varsity (grass) | ||
| Glencoe | 6A | Varsity (turf), JV (turf) | Varsity YES | |
| Grant | 6A | |||
| Gresham | 6A | |||
| Hillsboro | 5A | |||
| Hillsboro Stadium | ||||
| Jefferson | 6A | No | YES | Plays at Delta Park |
| Jesuit | 6A | Varsity (turf), JV (turf) | Varsity YES | |
| Lake Oswego | 6A | Varsity (turf) | Varsity YES | Plays at Lake Oswego JHS which is under construction, Park at elementary school beyond right field. |
| Lakeridge | 6A | Varsity (turf) | ||
| LaSalle | 5A | Varsity (grass), JV (grass) | No | |
| Liberty | 6A | Plays at Hillsboro Stadium | ||
| Lincoln | 6A | grass | ||
| McDaniel | 6A | |||
| Milwaukie | 5A | Plays at off-campus complex | ||
| Mountainside | 6A | Varsity (turf), JV (grass) | ||
| Nelson | 6A | Varsity (turf) | ||
| Newburg | 6A | Varsity (grass), JV (grass) | Varsity YES | |
| Oregon City | 6A | Varsity (grass), JV (grass) | ||
| Parkrose | 5A | |||
| Portland Adventist | 3A | Varsity (turf) | Varsity YES | |
| Portland Christian | 2A/1A | |||
| Putnam | 5A | |||
| Reynolds | 6A | |||
| Reynolds | 6A | |||
| Roosevelt | 6A | |||
| Sandy | 6A | |||
| Scappoose | 4A | |||
| Sherwood | 6A | Varsity (turf) | Varsity NO | |
| Southridge | 6A | |||
| St. Helens | 4A | New field located at old baseball field near community center. | ||
| Sunset | 5A | Varsity (turf) | Varsity YES | |
| Tigard | 6A | Varsity (turf), JV (grass) | ||
| Tualatin | 6A | Varsity (turf), JV (grass) | NO | |
| Wells | 6A | Plpays at Rieke ES | ||
| West Linn | 6A | Plays at Rosemont Ridge MS | ||
| Westview | 6A | |||
| Wilsonville | 5A | Varsity and JV turf | Varsity and JV YES | |
| Valley Catholic | 3A | Varsity (grass) | NO | |
| Vernonia | 2A/1A | grass |