| Sager,
Ethan - Star, ID |
| Salima,
Grace - Anchorage, AK |
| Salima,
Nathanael - Anchorage, AK |
| Samayo,
Nathan - Tacoma, WA |
| Samuelson,
Kalais - Beaverton, OR |
| Sandoval,
Jennifer - Concord, CA |
| Sandvick,
Kelby - Kelso, WA |
| Sapozhnikova,
Karina - Malaga, WA |
| Satre,
Kimberly - Spokane, WA |
| Saxton,
Sophie - Evergreen, CO |
| Schafte,
Jacob - Everett, WA |
| Schander,
Brayden - Tracy, CA |
| Schenck,
Riley - Shoreline, WA |
| Schirm,
Serena - West Linn, OR |
| Schnider,
Caitlyn - Portland, OR |
| Schoenberg,
Madison - Seabeck, WA |
| Schroeder,
Amanda - Aurora, OR |
| Schuelein,
Madeline - San Ramon, CA |
| Schultz,
Brayden - Kenmore, WA |
| Schultz,
Melissa - Whittier, CA |
| Schultz,
Samantha - Kirkland, WA |
| Schuster,
Brittany - Langley, WA |
| Schwark,
Jenai - Renton, WA |
| Schwartz,
Kayleigh - Las Vegas, NV |
| Scott,
Blaine - Seattle, WA |
| Scott,
Samuel - Snohomish, WA |
| Scott,
Talitha - Coarsegold, CA |
| Seang,
Sabrina - Shoreline, WA |
| Search,
Samantha - Glendora, CA |
| Sebastian,
Emma - San Rafael, CA |
| Seiber,
Kaylee - Kent, WA |
| Seibert,
Megan - Bothell, WA |
| Seidel,
Grace - Seabeck, WA |
| Sellke,
Sarah - Portland, OR |
| Semenea,
Nicoleta - Clyde Hill, WA |
| Sesay,
Mondain - La Crescenta, CA |
| Setiono,
Megan - Seattle, WA |
| Severson,
Kathryn - Lynnwood, WA |
| Shannon,
Natalie - Kent, WA |
| Sharpe,
Jonathan - Burlington, WA |
| Shaw,
Hope - Tacoma, WA |
| Sherpa,
Lhakpa - Solukhumbu, NEPAL |
| Shewmaker,
Natalie - Covington, WA |
| Shigeta,
Laura - Honolulu, HI |
| Shin,
Paul - Anchorage, AK |
| Shrum,
Bailey - Lynnwood, WA |
| Silva,
Marisa - Seattle, WA |
| Simmons,
Madison - Corona, CA |
| Simonsen,
Hannah - Cheney, WA |
| Slevin,
Benjamin - Trabuco Canyon, CA |
| Smith,
Chloe - Edmonds, WA |
| Smith,
Dylan - Phoenix, AZ |
| Smith,
Eirene - Austin, TX |
| Smith,
Isabel - Tanjong Bungah, MALAY |
| Smith,
Joy - Vancouver, WA |
| Smith,
Kaitlyn - Lynnwood, WA |
| Smith,
Renee - Monument, CO |
| Smith,
Sierra - Boise, ID |
| Smith,
Sydney - Bothell, WA |
| Snellenberg-Fraser,
Michael - Mercer Island, WA |
| Snyder,
Emma - San Diego, CA |
| Snyder,
Jessica - Seattle, WA |
| So,
Erin - Edmonds, WA |
| Song,
JunWon - Bishkek, Bichkek, KYRGY |
| Sparkmon,
Sarah - Bonney Lake, WA |
| Sparks-Stuht,
Jessica - Kirkland, WA |
| Spatacean,
Christine - Bellevue, WA |
| Speaker,
Tobi - Spanaway, WA |
| Speck,
Heidi - Santa Barbara, CA |
| Speer,
Tyler - Grand Junction, CO |
| Spilker,
Shaely - Burlington, WA |
| Spitzer,
Keith - Poulsbo, WA |
| Splattstoesser,
Madeleine - Richland, WA |
| Sprague,
Hayley - Portland, OR |
| Sprague,
Jacob - Monroe, WA |
| St John,
Isabel - Vancouver, WA |
| Stafford,
Suzanne - Oregon City, OR |
| Starkey,
Ian - Spokane, WA |
| Stehr,
Faith - Sutherlin, OR |
| Steib,
Annika - Tower Lakes, IL |
| Stein,
Bethany - Houma, LA |
| Stepper,
Julia - Ariel, WA |
| Stevens,
Chandler - Woodinville, WA |
| Stewart,
Hannah - Seattle, WA |
| Stewart,
Samantha - Poulsbo, WA |
| Stez,
Andrew - Murrieta, CA |
| Stime,
Soren - Colbert, WA |
| Stinson,
Emily - Salem, OR |
| Stoltzfus,
Caitlyn - Tucson, AZ |
| Strabley,
Alayna - Brentwood, CA |
| Strachan,
Timothy - Bainbridge Island, WA |
| Straka,
Danielle - Trabuco Canyon, CA |
| Strawn,
Keaton - Pasadena, CA |
| Streeter,
Devin - Seattle, WA |
| Stricko,
Lindsay - Carlsbad, CA |
| Strom,
Kyra - Princeton, IL |
| Strong,
Cara - Yakima, WA |
| Subramanie,
Puran - Corentyne, GUYAN |
| Suen,
Keane - Woodinville, WA |
| Sugino,
Katelyn - Raleigh, NC |
| Sunderland,
Emily - Sunnyvale, CA |
| Surdacki,
Abby - Franklin, TN |
| Sutherland,
Marlia - Auburn, WA |
| Swallow,
Travis - Coeur D Alene, ID |
| Swayze,
Samantha - Gig Harbor, WA |
| Swearingen,
Karly - Vernal, UT |
| Swearingen,
Katherine - Dumfries, VA |
| Sydenstricker,
Patricia - Port Orchard, WA |
| Symons,
Anne - Edmonds, WA |