| Kainu,
Sadie - Brush Prairie, WA |
| Kaldor,
Nathaniel - Everett, WA |
| Kang,
Sara - South Pasadena, CA |
| Karaica,
Davis - Issaquah, WA |
| Karaica,
Laura - Kirkland, WA |
| Karli,
Samantha - Seattle, WA |
| Karlstad,
Ashley - Seattle, WA |
| Kauffman,
Jillian - Fort Collins, CO |
| Kaulukukui,
Nainoa - Kapaa, HI |
| Kaveney,
Serena - Lincoln, CA |
| Keck,
Katherine - Mount Vernon, WA |
| Kegley,
Meredith - Seattle, WA |
| Kellum,
Gabriel - Lynnwood, WA |
| Kelly,
Jacob - Bonney Lake, WA |
| Kelly,
Kathryn - Scottsdale, AZ |
| Kennedy,
Alyse - Mount Vernon, WA |
| Kent,
Emily - Seattle, WA |
| Kerr,
Helena - Snohomish, WA |
| Kesselring,
Dylan - Issaquah, WA |
| Kettel,
Hailey - Edmonds, WA |
| Kharitonova,
Anastasia - Federal Way, WA |
| Kidd,
Jeremy - |
| Kidd,
Kabrina - Pacific, WA |
| Kifle,
Henok - Seattle, WA |
| Killam,
Jonathan - St Charles, IL |
| Kilpatrick,
Annie - Seattle, WA |
| Kilpatrick,
Cody - Spokane, WA |
| Kim,
Heidi - Lynnwood, WA |
| Kim,
Julie - Honolulu, HI |
| Kim,
Yuna - Edmonds, WA |
| Kincade,
Emma - Eugene, OR |
| Knodel,
Elizabeth - Flagstaff, AZ |
| Knopp,
Eleanor - Canby, OR |
| Kollars,
Jordan - Bremerton, WA |
| Kopack,
Abigail - Murrieta, CA |
| Koseda,
Kaitlin - Kealakekua, HI |
| Koval,
Yuri - Delta Junction, AK |
| Kramer,
Kylee - Glendora, CA |
| Kramer,
Mara - Gig Harbor, WA |
| Krauss,
Madeline - Lake Oswego, OR |
| Krodel,
Jacob - Shoreline, WA |
| Kroontje,
Carson - Lynden, WA |
| Krumpl,
Lukas - Vienna, AUSTR |
| Kua,
Riley - Olympia, WA |
| Kumasaka,
Colby - Seattle, WA |
| Kwon,
Jonathan - Bothell, WA |
| Ky,
Sally - Honolulu, HI |