| Place | Time | Name (Yr) | School | City | State |
| 1 | :52.43 | Kendyl Stewart (10) | La Costa Canyon High School | Carlsbad | CA |
| 2 | :52.77 | Jasmine Tosky (10) | Palo Alto High School | Palo Alto | CA |
| 3 | :53.09 | Olivia Scott (12) | Rosary High School | Aurora | IL |
| 4 | :53.10 | Katie Kinnear (10) | Eastlake High School | Sammamish | WA |
| 5 | :53.25 | Lily Moldenhauer (12) | Winston Churchill High School | San Antonio | TX |
| 6 | :53.60 | Marissa Neel (10) | San Ramon Valley High School | Danville | CA |
| 7 | :53.88 | Chelsea Britt (9 ) | Lake Highland Preparatory School | Orlando | FL |
| 8 | :54.13 | Kelly Naze (10) | Cherry Creek High School | Greenwood Village | CO |
| 9 | :54.22 | Katelyne Herrington (12) | Tokay High School | Lodi | CA |
| 10 | :54.27 | Mary Griffith (10) | Tokay High School | Lodi | CA |
| 11 | :54.30 | Trish Regan (12) | Carmel High School | Carmel | IN |
| 12 | :54.33 | Lauren Harrington (11) | St. Mary's Episcopal School | Memphis | TN |
| 13 | :54.45 | Casey Clark (11) | Klein High School | Klein | TX |
| 14 | :54.52 | Ana Anaya (11) | John A Ferguson Senior High School | Miami | FL |
| 15 | :54.59 | Meghan Hawthorne (12) | Chaminade College Preparatory | West Hills | CA |
| 16 | :54.63 | Megan Fonteno (11) | The Bolles School | Jacksonville | FL |
| 17 | :54.65 | Dani Barbiea (11) | Springboro High School | Springboro | OH |
| 18 | :54.70 | Nicole Stafford (9 ) | Westminster Schools | Atlanta | GA |
| 19 | :54.76 | Ellen Williamson (11) | Notre Dame Academy | Park Hills | KY |
| 20 | :54.80 | Kylie Garcia (12) | Rowland High School | Rowland Heights | CA |
| 20 | :54.80 | Haley Sims (11) | Downers Grove North High School | Downers Grove | IL |
| 20 | :54.80 | Noelle Tarazona (11) | Claremont High School | Claremont | CA |
| 23 | :54.82 | Mackenzie Powers (12) | Rosary High School | Aurora | IL |
| 24 | :54.89 | Meghan Cummings (10) | Eden Prairie High School | Eden Prairie | MN |
| 25 | :54.92 | Anna DeMonte (10) | Ann Arbor Huron High School | Ann Arbor | MI |
| 26 | :54.98 | Carolyn Fittin (11) | The Peddie School | Hightstown | NJ |
| 27 | :55.05 | Shannon Guy (12) | Millard West High School | Omaha | NE |
| 28 | :55.07 | Danielle Schulkin (12) | Walt Whitman High School | Bethesda | MD |
| 29 | :55.14 | Julie Ogden (11) | Lawrence North High School | Indianapolis | IN |
| 30 | :55.17 | Dagny Knutson (12) | Minot High School | Minot | ND |
| 31 | :55.20 | Ali Polhill (12) | Brewster High School | Brewster | NY |
| 32 | :55.21 | Brittany Robinson (10) | Wawasee High School | Syracuse | IN |
| 33 | :55.22 | Elizabeth Bell (12) | Anna-Jonesboro Community High School | Anna | IL |
| 34 | :55.25 | Kaitlin Frehling (12) | Seminole High School | Seminole | FL |
| 35 | :55.26 | Olivia Barker (9 ) | Bishop Gorman High School | Las Vegas | NV |
| 36 | :55.27 | Emma Goral (11) | Arrowhead High School | Hartland | WI |
| 37 | :55.28 | Riley Flanagan (12) | Buchholz High School | Gainesville | FL |
| 38 | :55.29 | Christina Ray (10) | Carondelet High School | Concord | CA |
| 39 | :55.30 | Hilvy Cheung (9 ) | American High School | Fremont | CA |
| 40 | :55.31 | Christina Bechtel (11) | Franklin High School | Franklin | TN |
| 40 | :55.31 | Thomas Naomi (10) | Burlingame High School | Burlingame | CA |
| 42 | :55.33 | Rachel Naurath (12) | The Collegiate School | Richmond | VA |
| 43 | :55.34 | Kaitlin Pawlowicz (11) | Oakton High School | Vienna | VA |
| 44 | :55.36 | Talie Anchustegui (10) | Xavier College Preparatory | Phoenix | AZ |
| 45 | :55.37 | Karen Turner (10) | Lakeridge High School | Lake Oswego | OR |
| 45 | :55.37 | Loreen Whitfield (11) | Clovis East High School | Clovis | CA |
| 47 | :55.39 | Rachael Dudley (10) | Mill Creek High School | Hoschton | GA |
| 47 | :55.39 | Annemarie Thayer (11) | Ballard High School | Seattle | WA |
| 49 | :55.44 | Rachel Moore (10) | Andover High School | Andover | MA |
| 50 | :55.47 | Victoria Gillespie (12) | Nazareth Academy | Philadelphia | PA |
| 50 | :55.47 | Maggie Gruber (9 ) | Mars Area High School | Mars | PA |
| 52 | :55.51 | Andrea Marko (12) | Greensburg Central Catholic High School | Greensburg | PA |
| 53 | :55.52 | Emily Yu (11) | Walnut High School | Walnut | CA |
| 54 | :55.56 | Amelia Schachter (10) | Arroyo Grande High School | Arroyo Grande | CA |
| 55 | :55.57 | Taylor Sneed (11) | Germantown Academy | Fort Washington | PA |
| 56 | :55.66 | Dayna Gettel (10) | Plano Senior High School | Plano | TX |
| 56 | :55.66 | Rhiannon Sheets (11) | Carmel High School | Carmel | IN |
| 58 | :55.67 | Catherine Galletti (10) | Trinity Preparatory School | Winter Park | FL |
| 58 | :55.67 | Kat Simonovic (9 ) | Mountain View High School | Mesa | AZ |
| 60 | :55.68 | Yurie Nakano (11) | Hershey High School | Hershey | PA |
| 61 | :55.72 | Summer Stephens (11) | Sacred Heart Academy | Louisville | KY |
| 62 | :55.73 | Kearsten Livingstone (12) | Canyon High School | Canyon Country | CA |
| 63 | :55.74 | Morgan Sprosty (12) | Northwood High School | Irvine | CA |
| 64 | :55.81 | Audrey Kumm (11) | Hutchinson High School | Hutchinson | MN |
| 65 | :55.83 | Bridget Casey (11) | Germantown Academy | Fort Washington | PA |
| 66 | :55.85 | Emily Holt (10) | Dupont Manual High School | Louisville | KY |
| 67 | :55.86 | Allison Gargalikis (11) | Carondelet High School | Concord | CA |
| 68 | :55.87 | Charlotte Ruby (10) | Archbishop Mitty High School | San Jose | CA |
| 69 | :55.92 | Jackie Swartz (12) | Centerville High School | Centerville | OH |
| 70 | :55.93 | Elizabeth Pepper (11) | Walter Johnson High School | Bethesda | MD |
| 71 | :55.94 | Shaun Casey (11) | Spruce Creek High School | Port Orange | FL |
| 72 | :55.95 | Deanna Marks (11) | Plano Senior High School | Plano | TX |
| 73 | :55.97 | Megan Leung (12) | Saint Ignatius College Preparatory | San Francisco | CA |
| 74 | :55.98 | Alana Pazevic (12) | Henry M. Jackson High School | Mill Creek | WA |
| 75 | :55.99 | Alexis Halberstadt (12) | Shanley High School | Fargo | ND |
| 75 | :55.99 | Nikki Larson (10) | Edina High School | Edina | MN |
| 77 | :56.00 | Marylyn Toledo (12) | Parish Episcopal School | Dallas | TX |
| 78 | :56.05 | Kelsi Worrell (10) | Rancocas Valley Regional High School | Mt. Holly | NJ |
| 79 | :56.06 | Emily Neubert (11) | Midway High School | Waco | TX |
| 80 | :56.08 | Aya Fujimura (12) | Woodbridge High | Irvine | CA |
| 81 | :56.09 | Lauren Torres (11) | Desert Vista High School | Phoenix | AZ |
| 82 | :56.14 | Maggie Hanson (12) | William S. Hart High School | Newhall | CA |
| 83 | :56.15 | Nikki Hubbard (12) | Penn High School | Mishawaka | IN |
| 83 | :56.15 | Andrea Staub (12) | Delone Catholic High School | McSherrystown | PA |
| 85 | :56.17 | Kelsey Leonard (9 ) | Las Lomas High School | Walnut Creek | CA |
| 85 | :56.17 | Courtney Whyte (11) | Campolindo High School | Moraga | CA |
| 87 | :56.18 | Nelle Glasser (12) | The Bolles School | Jacksonville | FL |
| 87 | :56.18 | Leticia Lelli (10) | Chaparral High School | Scottsdale | AZ |
| 89 | :56.22 | Allison Knight (12) | La Jolla High School | La Jolla | CA |
| 90 | :56.25 | Madison Applegate (10) | Heritage High School | Brentwood | CA |
| 90 | :56.25 | Sarah Koucheki (9 ) | Hawken School | Gates Mills | OH |
| 92 | :56.29 | Taylor Strachan (9 ) | Gardner High School | Gardner | MA |
| 93 | :56.30 | Dana Grindall (9 ) | Amity Regional High School | Woodbridge | CT |
| 94 | :56.31 | Heather Coutts (11) | Bishop Kenny High School | Jacksonville | FL |
| 94 | :56.31 | Anna Mann (10) | Manheim Township High School | Lancaster | PA |
| 94 | :56.31 | Alex Todd (11) | Regis Jesuit High School | Aurora | CO |
| 97 | :56.38 | Malia Johnson (12) | Chaparral High School | Scottsdale | AZ |
| 97 | :56.38 | Shannon Jones (12) | Greenwich High School | Greenwich | CT |
| 97 | :56.38 | Alexandra Yaeger (9 ) | Prior Lake Senior High School | Savage | MN |
| 100 | :56.39 | Sarah Lloyd (12) | Severna Park High School | Severna Park | MD |
| 101 | :56.41 | Marissa Murphy (12) | Forest Hills Central High School | Grand Rapids | MI |
| 102 | :56.42 | Natalie Morris (11) | Olathe Northwest High School | Olathe | KS |
| 103 | :56.44 | Ali Horn (11) | Cave Spring High School | Roanoke | VA |
| 104 | :56.45 | Claudia Carlson (12) | Johnson High School | San Antonio | TX |
| 105 | :56.47 | Maggie Rosenbaum (12) | Monument Mountain Regional High School | Great Barrington | MA |
| 106 | :56.48 | Kate Dillione (11) | Council Rock High School | Newtown | PA |
| 107 | :56.49 | Jessica Bottelberghe (11) | Columbia River High School | Vancouver | WA |
| 107 | :56.49 | Hillary Yarosh (12) | Unionville High School | Kennett Square | PA |
| 109 | :56.51 | Melissa Paakh (11) | Detroit Lakes High School | Detroit Lakes | MN |
| 110 | :56.54 | Danielle Jansen (12) | Mason High School | Mason | OH |
| 110 | :56.54 | Katie Van Fossen (12) | Upper Arlington High School | Upper Arlington | OH |
| 112 | :56.61 | Alli Haufler (10) | Briar Woods High School | Ashburn | VA |
| 113 | :56.62 | Addy Ferguson (10) | Cloverleaf High School | Lodi | OH |
| 114 | :56.63 | Christine Riddle (12) | Grapevine / Colleyville Heritage High School | Colleyville | TX |
| 115 | :56.65 | Caldwell Lauren (11) | Jamestown High School | Jamestown | NY |
| 116 | :56.66 | Kayla Skenandore (10) | Waukesha South High School | Waukesha | WI |
| 117 | :56.68 | Emma Sougstad (9 ) | Mason City High School | Mason City | IA |
| 118 | :56.71 | Kaitlin Wolla (12) | Yorktown High School | Arlington | VA |
| 119 | :56.72 | Casey Papp (10) | Bloomington High School South | Bloomington | IN |
| 120 | :56.73 | Kate Brandus (11) | Milton High School | Alpharetta | GA |
| 120 | :56.73 | Fallon Fitzpatrick (12) | Boca Raton High School | Boca Raton | FL |
| 122 | :56.74 | Ashley Ahn (12) | Centennial High School | Circle Pines | MN |
| 122 | :56.74 | Melissa Trail (11) | Fox Lane High School | Bedford | NY |
| 124 | :56.76 | Angela Sun (10) | Great Neck South High School | Great Neck | NY |
| 125 | :56.77 | Chloe Portela (11) | Lawrence Free State High School | Lawrence | KS |
| 126 | :56.78 | Margaret Wenzlau (10) | Palo Alto High School | Palo Alto | CA |
| 127 | :56.79 | Rheanna Vaughn (12) | Aliso Niguel High School | Aliso Viejo | CA |
| 128 | :56.80 | Danielle Kerr (12) | Eastside High School | Gainesville | FL |
| 129 | :56.82 | Keara Daly (11) | Cromwell High School | Cromwell | CT |
| 129 | :56.82 | Emma Lawrenz (11) | Minnetonka High School | Minnetonka | MN |
| 129 | :56.82 | Annmarie McCotter (10) | Bishop Eustace Preparatory School | Pennsauken | NJ |