Barrios de Oregon S
- Sabin (3)
- Sabin-Irvington (2)
- Santa Clara (8)
- Sellwood-Moreland (17)
- Sexton Mountain (9)
- Sherwood/Tualatin North (9)
- Sherwood/Tualatin South (16)
- Sommerset West-Elmonica South (16)
- South Beaverton (4)
- South Burlingame (4)
- South Central (8)
- South Eliot (4)
- South End (1)
- South Gateway (17)
- South Hillsboro (3)
- South Portland (24)
- South Salem (5)
- South Tabor (4)
- South University (8)
- South Waterfront (17)
- Southeast Bend (2)
- Southeast Eugene (11)
- Southeast Hillsboro (14)
- Southeast Mill Creek (6)
- Southeast Salem (2)
- Southeast Uplift (2)
- Southern Crossing (10)
- Southgate (5)
- Southwest Bend (11)
- Southwest Hills (11)
- Springfield Gateway (10)
- St Johns (16)
- Stafford-Tualatin Valley (1)
- Sullivan's Gulch (8)
- Summit West (12)
- Sumner (1)
- Sunderland (2)
- Sunnyside (14)
- Sunnyside Damascus (7)
- Sunnyslope (8)
- Sunset (1)
- Sylvan-Highlands (2)