| Saeteurn,
Dabbe - Seattle, WA |
| Saito,
Saki - Zushi, JAPAN |
| Salazar,
Aaron - Kent, WA |
| Salazar,
Jamilah - Bremerton, WA |
| Salim,
Ruweyda - Seattle, WA |
| Salimova,
Sabina - Seattle, WA |
| Salinas,
Perla - Bothell, WA |
| Salinas-Cruz,
Camila - Grants Pass, OR |
| Salman,
Catherine - Seattle, WA |
| Sams,
Logan - Seattle, WA |
| Sanchez,
Mia - Corpus Christi, TX |
| Sandoval,
Alexia - Wenatchee, WA |
| Sapier,
Alison - Anacortes, WA |
| Saunders,
Cameron - Blaine, WA |
| Savellano,
Besy Ann - Renton, WA |
| Sawyer,
Avery - Poulsbo, WA |
| Saxon,
Mikel - Kirkland, WA |
| Scalera,
Isabella - Tacoma, WA |
| Schau,
Anika - Normandy Park, WA |
| Schoenerstedt,
Nikias - Tribuswinkel, AUSTRIA |
| Schoennauer,
Landry - San Jose, CA |
| Schoepflin,
Jade - Lynnwood, WA |
| Scholz,
Gideon - Stanwood, WA |
| Schumer,
Malia - Seattle, WA |
| Sebastian,
Nicole - Honolulu, HI |
| Seefeldt,
Chloe - Salem, OR |
| Seki,
Jacqueline - Honolulu, HI |
| Sergeeva,
Elizaveta - Black Diamond, WA |
| Sergeyeva,
Ekaterina - Black Diamond, WA |
| Sessions,
Ella - Spokane, WA |
| Sevilla,
Allison Aeris - Tukwila, WA |
| Shahzahan,
Shadman - Vancouver, WA |
| Shaw,
Keira - Kent, WA |
| Sheikh,
Hanna - Seattle, WA |
| Sheirbon,
Benjamin - Wilsonville, OR |
| Shimabayashi,
Midori - Toyama, JAPAN |
| Short,
Erica - Carpinteria, CA |
| Shriner,
Elijah - Signal Mtn, TN |
| Sia,
Jasmine - Lake Tapps, WA |
| Sica,
Caleb - Covington, WA |
| Sieber,
Sean - Seattle, WA |
| Sievert,
Cole - Colorado Spgs, CO |
| Silva,
Malia Ana - Cathlamet, WA |
| Sim,
Krishelle - Kahului, HI |
| Simon,
Sarah - Renton, WA |
| Sims,
Ondreana - Tacoma, WA |
| Singh,
Gurpreet - Hoshiarpur, INDIA |
| Slavens,
Isabella - Vancouver, WA |
| Smith,
Adeline - Kenai, AK |
| Smith,
Breanna - Ellensburg, WA |
| Smith,
Destiny - Grand Prairie, TX |
| Smith,
Ella - Silverdale, WA |
| Smith,
Erin - Carlsbad, CA |
| Smith,
Hannah - Eagle, ID |
| Smith,
Matthew - Stanwood, WA |
| Snedeker,
Lauren - Washougal, WA |
| Son,
Kaleb - Kent, WA |
| Spencer,
Emmerson - Bellevue, WA |
| Spickelmier,
Matthew - Plymouth, MN |
| Stargell,
Anna-Celeste - Maple Falls, WA |
| Starke,
Katherine - San Jose, CA |
| Stevens,
Laurel - Bellingham, WA |
| Stevenson,
Matthew - Renton, WA |
| Sueyoshi,
Mia - Kaneohe, HI |
| Sumile,
Drew - Kailua, HI |
| Sutherland,
Aengus - Lake Oswego, OR |
| Swearingen,
Jane - Portland, OR |