Barrios de Washington S
- Salmon Creek (2)
- Samish Hill (17)
- Sand Point (2)
- Scenic Hill (1)
- Seahurst (4)
- Seatac (11)
- Seattle Hill-Silver Firs (9)
- Seaview Seattle (1)
- Seward Park (2)
- Shadow Hawk (2)
- Shelby (1)
- Sheridan Beach (3)
- Sheridan Park (5)
- Shoreline (49)
- Shoultes (2)
- Silver Firs (2)
- Silver Lake (15)
- Smokey Point (4)
- South Auburn (5)
- South Beacon Hill (2)
- South Capitol (1)
- South Delridge (9)
- South End (43)
- South Forest Park (2)
- South Hill (1)
- South Hill (46)
- South Juanita (8)
- South Kent (1)
- South Lake Union (82)
- South Lake Washington (1)
- South Lakes (4)
- South Olympia (14)
- South Park (4)
- South Renton (3)
- South Rose Hill (2)
- South Tacoma (39)
- South Union (2)
- South Westside (6)
- Southeast Bellevue (13)
- Southeast Redmond (8)
- Southern Heights-Boulevard Park (6)
- Southwest Bellevue (9)
- Springbrook Terrace (6)
- Springtree (1)
- Squak Mountain (1)
- Stadium District (45)
- Starcrest (7)
- Stevens (15)
- Summit Puyallup (5)
- Sunset (6)
- Sycamore (1)