Barrios de Washington S
- Salmon Creek (3)
- Samish Hill (34)
- Scenic Hill (4)
- Seahurst (3)
- Seatac (9)
- Seattle Hill-Silver Firs (12)
- Seaview (1)
- Seaview Seattle (3)
- Seward Park (2)
- Shelby (1)
- Shelton View-Meridian-3rd SE (2)
- Sheridan Beach (4)
- Sheridan Park (5)
- Shoultes (4)
- Shumway (1)
- Silver Firs (4)
- Silver Lake (17)
- Smokey Point (4)
- Somerset (1)
- South Auburn (15)
- South Beacon Hill (8)
- South Bellingham (2)
- South Capitol (3)
- South Delridge (17)
- South End (41)
- South Forest Park (2)
- South Hill (7)
- South Hill (72)
- South Juanita (13)
- South Lake Union (84)
- South Lake Washington (1)
- South Lakes (7)
- South Olympia (22)
- South Park (7)
- South Renton (5)
- South Rose Hill (2)
- South Tacoma (44)
- South Westside (6)
- Southeast Bellevue (16)
- Southeast Redmond (10)
- Southern Heights-Boulevard Park (6)
- Southwest Bellevue (13)
- Springbrook Terrace (3)
- Squak Mountain (1)
- Stadium District (48)
- Starcrest (10)
- Stevens (17)
- Stonegate (1)
- Summerfield (1)
- Summit (2)
- Summit Puyallup (2)
- Sunnyside (1)
- Sunnyside Vancouver (1)
- Sunset (14)
- Sunset Hill (3)
- Sycamore (1)