| Cabanilla,
John Carlo - Seatac, WA |
| Cain,
Lauren - Wenatchee, WA |
| Caldeira,
Sydney - Kaneohe, HI |
| Camarena,
Reynalinda - Puyallup, WA |
| Cameron,
Skyelar - Seattle, WA |
| Campbell,
Taryn - Covington, WA |
| Campos-Sanchez,
Ada Mari - Renton, WA |
| Capindo,
Leah - Lacey, WA |
| Cariaga,
Althea - Kaunakakai, HI |
| Carlisle,
Yitian - Lynnwood, WA |
| Carter,
Abigail - Port Orchard, WA |
| Carter,
Shiasia - Tacoma, WA |
| Carty,
Erin - Happy Valley, OR |
| Case,
Courtney - Bothell, WA |
| Castaneda,
Liana - Ferndale, WA |
| Cater,
Honoka - Neyagawa, JAPAN |
| Cavanaugh,
Rebecca - San Francisco, CA |
| Chambers,
Daniel - Seattle, WA |
| Champ-Gibson,
Noelle - Auburn, WA |
| Chan,
McKenzie - Post Falls, ID |
| Chang,
Sean - Brier, WA |
| Chase,
Delaney - Sherwood, OR |
| Chavez Peraza,
Jazmin - Everett, WA |
| Cheesman,
Charlize - Mill Creek, WA |
| Chen,
Jing Chun Yang - Beijing, CHINA |
| Chen,
Johanna - Seattle, WA |
| Chiangpradit,
Nicole - Seattle, WA |
| Cho,
Justin - Fife, WA |
| Chong,
Jennifer - Edmonds, WA |
| Chong-Gum,
Elijah - Honolulu, HI |
| Christinia,
Micoelle - Tacoma, WA |
| Chu,
Richard - Cupertino, CA |
| Chung,
Hannah - Renton, WA |
| Cissna,
Caleb - Kenmore, WA |
| Claggett,
Theran - Kent, WA |
| Clark,
Adelynn - Olympia, WA |
| Clark,
Alaysja - Chula Vista, CA |
| Clark,
Riley - Tacoma, WA |
| Clasey,
Katelyn - Ridgefield, WA |
| Cockerell,
Gabrialla - Ventura, CA |
| Coleman,
Grace - Beaverton, OR |
| Comia,
Joshua James - Lynnwood, WA |
| Connolly,
Addyson - Bow, WA |
| Connolly,
Carmen - Brighton, CO |
| Contreras Avila,
Angie - Kent, WA |
| Coppock,
Elias - Longmont, CO |
| Cordova-Espinosa,
Karla - Edmonds, WA |
| Cortes,
Elizabeth - Kent, WA |
| Cowan,
Brianna - Sequim, WA |
| Cowart,
Josiah - South Prairie, WA |
| Cox,
Carrie - Bellevue, WA |
| Cresap,
Ryan - Wenatchee, WA |
| Cribbs,
Colby - Lynnwood, WA |
| Crosby,
Kelsey - Coupeville, WA |
| Crutcher,
Elizabeth - Key Largo, FL |
| Cryder,
Hannah - Port Orchard, WA |
| Cunningham,
Abigail - Bixby, OK |
| Cyers,
Rachel - Midlothian, TX |