Barrios de Washington S
- Salmon Creek (4)
- Samish Hill (30)
- Sand Point (1)
- Scenic Hill (3)
- Seahurst (3)
- Seatac (8)
- Seattle Hill-Silver Firs (11)
- Seaview (1)
- Seaview Seattle (2)
- Seven Mile (1)
- Shelton View-Meridian-3rd SE (1)
- Sheridan Beach (3)
- Sheridan Park (5)
- Shoultes (1)
- Silver Firs (1)
- Silver Lake (24)
- Smokey Point (1)
- South Auburn (11)
- South Beacon Hill (5)
- South Capitol (1)
- South Delridge (11)
- South End (42)
- South Forest Park (4)
- South Hill (5)
- South Hill (56)
- South Juanita (20)
- South Kent (2)
- South Lake Union (79)
- South Lake Washington (1)
- South Lakes (5)
- South Olympia (15)
- South Park (3)
- South Renton (10)
- South Rose Hill (1)
- South Tacoma (43)
- South Westside (4)
- Southeast Auburn (1)
- Southeast Bellevue (13)
- Southeast Redmond (14)
- Southern Heights-Boulevard Park (7)
- Southwest Bellevue (6)
- Springbrook Terrace (7)
- Springtree (1)
- Squak Mountain (2)
- Stadium District (53)
- Starcrest (7)
- Stevens (16)
- Stonegate (1)
- Summit (2)
- Summit Puyallup (2)
- Sunnyside (1)
- Sunset (11)
- Sunset Hill (4)
- Sycamore (2)