Barrios de Washington S
- Samish Hill (17)
- Sand Point (2)
- Scenic Hill (3)
- Seahurst (2)
- Seatac (5)
- Seattle Hill-Silver Firs (5)
- Seaview Seattle (1)
- Seward Park (4)
- Shelton View-Meridian-3rd SE (1)
- Sheridan Beach (3)
- Sheridan Park (4)
- Shoreline (41)
- Shoultes (2)
- Shumway (1)
- Silver Firs (2)
- Silver Lake (16)
- Smokey Point (3)
- Snohomish Cascade (1)
- South Auburn (5)
- South Beacon Hill (3)
- South Bellingham (1)
- South Delridge (8)
- South End (36)
- South Forest Park (3)
- South Hill (2)
- South Hill (53)
- South Juanita (10)
- South Lake Union (90)
- South Lake Washington (1)
- South Lakes (2)
- South Olympia (17)
- South Park (6)
- South Renton (3)
- South Tacoma (37)
- South Westside (4)
- Southeast Bellevue (9)
- Southeast Redmond (8)
- Southern Heights-Boulevard Park (2)
- Southwest Bellevue (9)
- Springbrook Terrace (7)
- Squak Mountain (2)
- St Helens (1)
- Stadium District (44)
- Starcrest (7)
- Stevens (14)
- Summit (1)
- Summit Puyallup (1)
- Sunnyside Vancouver (4)
- Sunset (6)
- Sunset Hill (4)
- Sycamore (1)