| Sagon,
Chelsey - Kapolei, HI |
| Sala,
Nicole - Gig Harbor, WA |
| Salman,
Catherine - Seattle, WA |
| Samuelson,
Kalais - Beaverton, OR |
| Sanders,
Annalise - Snohomish, WA |
| Sanford,
Camille - Edmonds, WA |
| Sangal,
Vanshika - Redmond, WA |
| Sangwin,
Hannah - Lake Stevens, WA |
| Santos,
Robin - Seattle, WA |
| Santucci,
Lydia - Bend, OR |
| Savell,
Jonathan - Lynnwood, WA |
| Schinkel,
Maia - Seattle, WA |
| Schirm,
Serena - West Linn, OR |
| Schmick,
Hannah - Auburn, WA |
| Schmidt,
Taylor - Port Orchard, WA |
| Schnider,
Caitlyn - Portland, OR |
| Schroeder,
Amanda - Aurora, OR |
| Schultz,
Samantha - Kirkland, WA |
| Schuster,
Brittany - Langley, WA |
| Sebastian,
Nicole - Honolulu, HI |
| Sednef,
Sofia - Kent, WA |
| Sednef,
Tobias - Kent, WA |
| Seibert,
Megan - Bothell, WA |
| Semere,
Rahwa - Tukwila, WA |
| Sesay,
Muhammad - Seatac, WA |
| Shaglani,
Japjeet - Burien, WA |
| Shah,
Khusbu - Bothell, WA |
| Shakil,
Esal - Bellevue, WA |
| Sheeres,
Jessica - Outlook, WA |
| Sheirbon,
Benjamin - Wilsonville, OR |
| Shepherd,
Julius - Fairfield, CA |
| Sherpa,
Lhakpa - , |
| Sheveland,
Sean - Canby, OR |
| Shewmaker,
Natalie - Covington, WA |
| Shin,
Philho - Puyallup, WA |
| Shmatok,
Oleksandra - Bonney Lake, WA |
| Short,
James - Bainbridge Is, WA |
| Sides,
Megan - Beaverton, OR |
| Sidhu,
Bijon - Issaquah, WA |
| Sievert,
Cole - Colorado Spgs, CO |
| Silva,
Marisa - Seattle, WA |
| Sim,
Hongbo - Chicago, IL |
| Singh,
Jujhar - Des Moines, WA |
| Sio,
Caitlin - Orting, WA |
| Skinner,
Sophia - Murrieta, CA |
| Skipper,
Jorie - Keizer, OR |
| Skipworth,
Kyra - Olympia, WA |
| Smith,
Alexandra - Bellevue, WA |
| Smith,
Charisma - Fife, WA |
| Smith,
Isabel - Tanjong Bungah, MALAY |
| Smith,
Matthew - Stanwood, WA |
| Smith,
Owen - Everett, WA |
| Snedeker,
Lauren - Washougal, WA |
| Snellenberg-Fraser,
Carlos - Seattle, WA |
| Soltani,
Noah - Kirkland, WA |
| Speakman,
Lily - Denver, CO |
| Speer,
Tyler - Grand Junction, CO |
| Spencer,
Katherine - Beaverton, OR |
| Spickelmier,
Matthew - Plymouth, MN |
| Spilker,
Shaely - Burlington, WA |
| Sta Maria,
Gabriel Jero - Renton, WA |
| Stehle,
Elizabeth - Portland, OR |
| Stephens,
Madison - Tacoma, WA |
| Stevenson,
Emma - Durham, NC |
| Stewart,
Hannah - Seattle, WA |
| Stinson,
Emily - Salem, OR |
| Struiksma,
Sofia - Artesia, CA |
| Styer,
Lauren - Bellevue, WA |
| Subramanie,
Puran - Corentyne, GUYAN |
| Sudberry,
Eve - Mill Creek, WA |
| Sukin,
Annabelle - Gresham, OR |
| Sutanto,
Pauline - Jakarta, INDON |
| Swenson,
Mackenzie - Everett, WA |
| Swift,
Alison - Carnation, WA |
| Sydenstricker,
Patricia - Port Orchard, WA |