| Kahusi,
Kiana - Medford, OR |
| Kalb,
Erin - Maple Valley, WA |
| Kalfus,
Grant - Trabuco Canyon, CA |
| Kano,
Carly - Temple City, CA |
| Kasperbauer,
Emilie - Bothell, WA |
| Kaufman,
Krystal - Ridgefield, WA |
| Kaufman,
Mira - Maple Valley, WA |
| Kavanaugh,
Sandra - Orange, CA |
| Kawano,
Kysha - Kaunakakai, HI |
| Kearns,
Rachel - Everett, WA |
| Kehret,
Parker - Keizer, OR |
| Keller,
Lincoln - Lynnwood, WA |
| Kelly,
Mackenzie - Lynnwood, WA |
| Kennedy,
Ryan - Mount Vernon, WA |
| Kessler,
Corey - Seattle, WA |
| Kester,
Madeleine - West Linn, OR |
| Khan,
Sharif - , |
| Kharitonova,
Anastasia - Federal Way, WA |
| Kibbe,
Alex - Selah, WA |
| Kiehm,
Courtney - Honolulu, HI |
| Kim,
Bomin - Federal Way, WA |
| Kim,
Donglin - Seattle, WA |
| Kim,
Julie - Honolulu, HI |
| Kim,
Lois - La Crescenta, CA |
| Kim,
Naomi - Spokane, WA |
| Kimmel,
Samantha - Woodinville, WA |
| Kinman,
Trevor - Edmonds, WA |
| Kirchner,
Jennifer - Watsonville, CA |
| Kirschner,
Katherine - North Bend, WA |
| Kirschner,
Sarah - Seattle, WA |
| Kispert,
Calvin - Edmonds, WA |
| Kiyanitsa,
Sophia - Port Orchard, WA |
| Kleinknecht,
Abigail - Sammamish, WA |
| Knepper,
Renee - Hillsboro, OR |
| Knipp,
Natasha - Kent, WA |
| Knudsen,
Jacob - South Hamilton, MA |
| Kolde,
Grant - Wenatchee, WA |
| Kolendich,
Katherine - Sammamish, WA |
| Kopack,
Abigail - Murrieta, CA |
| Koster,
Wim - Duvall, WA |
| Kott,
Jill - Mercer Island, WA |
| Kramarevsky,
Ilya - Tacoma, WA |
| Kramer-Marion,
Genevieve - Lakewood, CO |
| Krause,
Cecilia - Glastonbury, CT |
| Krumm,
Kora - Redmond, WA |
| Kuang,
Chao-Ju - Kirkland, WA |
| Kudenchuk,
Elizabeth - Normandy Park, WA |
| Kukhotskiy,
Timofey - Everett, WA |
| Kull,
Jessica - Simsbury, CT |
| Kurtz-Shaw,
Mathea - Greenville, IL |
| Kwok,
Kate - Lynnwood, WA |