Barrios de Washington S
- Salmon Creek (7)
- Samish Hill (28)
- Scenic Hill (4)
- Seahurst (3)
- Seatac (13)
- Seattle Hill-Silver Firs (13)
- Seaview Seattle (4)
- Seward Park (2)
- Shelby (2)
- Shelton View-Meridian-3rd SE (1)
- Sheridan Beach (4)
- Sheridan Park (5)
- Shoultes (3)
- Shumway (6)
- Silver Firs (2)
- Silver Lake (23)
- Smokey Point (4)
- Somerset (2)
- South Auburn (12)
- South Beacon Hill (5)
- South Capitol (9)
- South Delridge (14)
- South End (49)
- South Forest Park (4)
- South Hill (6)
- South Hill (86)
- South Juanita (17)
- South Kent (3)
- South Lake Union (91)
- South Lake Washington (1)
- South Lakes (2)
- South Olympia (21)
- South Park (14)
- South Renton (5)
- South Rose Hill (6)
- South Tacoma (46)
- South Westside (6)
- Southeast Auburn (1)
- Southeast Bellevue (15)
- Southeast Redmond (10)
- Southern Heights-Boulevard Park (6)
- Southwest Bellevue (12)
- Springbrook Terrace (5)
- Stadium District (55)
- Starcrest (13)
- Stevens (21)
- Stonegate (1)
- Summerfield (1)
- Summit (8)
- Summit Puyallup (4)
- Sunnyside (1)
- Sunnyside Vancouver (2)
- Sunset (7)
- Sunset Hill (3)
- Sycamore (2)