Washington State City Government Listing: S
Last update: April 1, 2005- Saint John (Whitman County)
- Salkum
- Sammamish (King County)
- Satsop (Grays Harbor County)
- Seabeck
- Seahurst (King County)
- SeaTac (King County)
- Seattle (King County)
- Seaview
- Sedro-Valley (Skagit County)
- Sekiu (Clallam County)
- Selah (Yakima County)
- Sequim (Clallam County)
- Shaw Island
- Shelton (Mason County)
- Shorelilne
- Silvana
- Silver Creek
- Silverdale (Kitsap County)
- Skamokawa (Wahkiakum County)
- Skykomish (King County)
- Smokey Point-Lakewood
- Snohomish (Snohomish County)
- Snoqualmie (King County)
- Snoqualmie Pass
- Soap Lake
- South Bend (Pacific County)
- South Cle Elum (Kittitas County)
- South Colby
- South Park Village (Kitsap County)
- South Prairie (Pierce County)
- Southworth (Kitsap County)
- Spanaway
- Spangle
- Spokane
- Sprague
- Springdale
- Stanwood
- Starbuck (Columbia County)
- Startup (Snohomish County)
- Stehekin
- Steilacoom
- Steptoe
- Stevenson
- Stratford (Grant County)
- Sultan
- Sumas (Whatcom County)
- Sumner (Pierce County)
- Sunnyside
- Suquamish
