| Place | Time | Swimmer (Yr) | School | City | State |
| 1 | :51.92 | Jasmine Tosky (11) | Palo Alto High School | Palo Alto | CA |
| 2 | :52.73 | Rachel Bootsma (11) | Eden Prairie High School | Eden Prairie | MN |
| 3 | :53.34 | Madison Martin (10) | Pickerington High School Central | Pickerington | OH |
| 4 | :53.56 | Rachel Moore (11) | Andover High School | Andover | MA |
| 5 | :53.64 | Lauren Harrington (12) | St. Mary's Episcopal School | Memphis | TN |
| 6 | :53.83 | Chelsea Britt (10) | Lake Highland Preparatory School | Orlando | FL |
| 6 | :53.83 | Haley Sims (12) | Downers Grove North High School | Downers Grove | IL |
| 8 | :53.91 | Casey Clark (12) | Klein High School | Spring | TX |
| 9 | :53.95 | Katie Kinnear (11) | Skyline High School | Sammamish | WA |
| 10 | :54.17 | Ellen Williamson (12) | Notre Dame Academy | Park Hills | KY |
| 11 | :54.25 | Marissa Neel (11) | San Ramon Valley High School | Danville | CA |
| 12 | :54.26 | Ally Howe (9 ) | Sacred Heart Preparatory | Atherton | CA |
| 13 | :54.33 | Hilvy Cheung (10) | American High School | Fremont | CA |
| 14 | :54.41 | Nicole Stafford (10) | Westminster Schools | Atlanta | GA |
| 15 | :54.52 | Rachael Dudley (11) | Mill Creek High School | Hoschton | GA |
| 16 | :54.54 | Noelle Tarazona (12) | Claremont High School | Claremont | CA |
| 17 | :54.56 | Mary Griffith (11) | Tokay High School | Lodi | CA |
| 17 | :54.56 | Deanna Marks (12) | Plano Senior High School | Plano | TX |
| 19 | :54.57 | Morgan Zebley (12) | Brighton High School | Brighton | MI |
| 20 | :54.61 | Julie Ogden (12) | Lawrence North High School | Indianapolis | IN |
| 21 | :54.62 | Catherine Breed (12) | Amador Valley High School | Pleasanton | CA |
| 22 | :54.63 | Maggie Gruber (10) | Mars Area High School | Mars | PA |
| 23 | :54.81 | Dana Grindall (10) | Amity Regional High School | Woodbridge | CT |
| 24 | :54.89 | Brittany Robinson (11) | Wawasee High School | Syracuse | IN |
| 25 | :54.90 | Leticia Lelli (11) | Chaparral High School | Scottsdale | AZ |
| 26 | :54.91 | Linnea Mack (10) | Pioneer High School | San Jose | CA |
| 27 | :54.93 | Ariana Bullard (10) | Carmel High School | Carmel | IN |
| 27 | :54.93 | Morgan Karetnick (11) | Greenwich High School | Greenwich | CT |
| 29 | :54.95 | Janet Hu (9 ) | Oakton High School | Vienna | VA |
| 30 | :54.96 | Olivia Barker (10) | Bishop Gorman High School | Las Vegas | NV |
| 30 | :54.96 | Charlotte Ruby (11) | Archbishop Mitty High School | San Jose | CA |
| 32 | :54.98 | Yurie Nakano (12) | Hershey High School | Hershey | PA |
| 33 | :54.99 | Ana Anaya (12) | John A. Ferguson Senior High School | Miami | FL |
| 34 | :55.02 | Alex Todd (12) | Regis Jesuit High School | Aurora | CO |
| 34 | :55.02 | Loreen Whitfield (12) | Clovis East High School | Clovis | CA |
| 36 | :55.09 | Megan Fonteno (12) | The Bolles School | Jacksonville | FL |
| 37 | :55.10 | Meaghan Raab (9 ) | Hershey High School | Hershey | PA |
| 38 | :55.14 | Allison Gargalikis (12) | Carondelet High School | Concord | CA |
| 39 | :55.15 | Taylor Weiss (9 ) | Etowah High School | Woodstock | GA |
| 40 | :55.18 | Madison Applegate (11) | Heritage High School | Brentwood | CA |
| 41 | :55.19 | Emily Neubert (12) | Midway High School | Waco | TX |
| 42 | :55.20 | Jordan Mattern (12) | Cherry Creek High School | Greenwood Village | CO |
| 43 | :55.22 | Katie Diller (10) | Manheim Township High School | Lancaster | PA |
| 43 | :55.22 | Sarah Koucheki (10) | Hawken School | Gates Mills | OH |
| 43 | :55.22 | Christina Ray (11) | Carondelet High School | Concord | CA |
| 43 | :55.22 | Naomi Thomas (11) | Burlingame High School | Burlingame | CA |
| 47 | :55.23 | Kelsi Worrell (11) | Rancocas Valley High School | Mt. Holly | NJ |
| 48 | :55.25 | Bevely Nguyen (11) | Davis Senior High School | Davis | CA |
| 49 | :55.36 | Emily Jiang (9 ) | Irvine High School | Irvine | CA |
| 50 | :55.43 | Courtney Otto (12) | West Seneca West High School | West Seneca | NY |
| 51 | :55.45 | Ali Horn (12) | Cave Spring High School | Roanoke | VA |
| 52 | :55.46 | Rhiannon Sheets (12) | Carmel High School | Carmel | IN |
| 53 | :55.47 | Jessica Godlewski (12) | Apex High School | Apex | NC |
| 54 | :55.48 | Shaun Casey (12) | Spruce Creek High School | Port Orange | FL |
| 55 | :55.54 | Sydney Bull (11) | Carroll High School | Fort Wayne | IN |
| 56 | :55.55 | Hellen Moffitt (10) | West Potomac High School | Alexandria | VA |
| 57 | :55.58 | Kaitlin Pawlowicz (12) | Oakton High School | Vienna | VA |
| 58 | :55.59 | Heather Coutts (12) | Bishop Kenny High School | Jacksonville | FL |
| 59 | :55.63 | Catherine Galletti (11) | Trinity Preparatory School | Winter Park | FL |
| 60 | :55.64 | Hanna House (9 ) | Homestead High School | Fort Wayne | IN |
| 61 | :55.65 | Casey Papp (11) | Bloomington High School South | Bloomington | IN |
| 62 | :55.69 | Angela Algee (10) | Dr Phillips High School | Orlando | FL |
| 63 | :55.70 | Jaclyn Amog (12) | Las Lomas High School | Walnut Creek | CA |
| 63 | :55.70 | Genevieve Heidkamp (11) | Hinsdale Central High School | Hinsdale | IL |
| 63 | :55.70 | Katherine Zander (12) | Orange Park High School | Orange Park | FL |
| 66 | :55.73 | Connie Hsu (11) | Glenbard South High School | Glen Ellyn | IL |
| 66 | :55.73 | Jasmine Mau (9 ) | Punahou School | Honolulu | HI |
| 68 | :55.77 | Summer Stephens (12) | Sacred Heart Academy | Louisville | KY |
| 68 | :55.77 | Hnnelore Strash (10) | Alamo Heights High School | San Antonio | TX |
| 70 | :55.81 | Emily Ramirez (11) | Monsignor Edward Pace High School | Miami | FL |
| 71 | :55.83 | Talie Anchustegui (11) | Xavier College Preparatory | Phoenix | AZ |
| 71 | :55.83 | Kali Conlon (10) | California High School | San Ramon | CA |
| 73 | :55.85 | Missy Franklin (10) | Regis Jesuit High School | Aurora | CO |
| 73 | :55.85 | Bianca Valencia (12) | Granada Hills Charter High School | Granada Hills | CA |
| 75 | :55.87 | Margaret Wenzlau (11) | Palo Alto High School | Palo Alto | CA |
| 76 | :55.90 | Nikki Barczak (12) | Mercy High School | Farmington Hills | MI |
| 77 | :55.91 | Molly Coonce (11) | Rosary High School | Aurora | IL |
| 78 | :55.92 | Claire Brandt (11) | Greenhill School | Addison | TX |
| 78 | :55.92 | Kayla Skenandore (11) | Waukesha South/Mukwonago High School | Waukesha | WI |
| 80 | :55.93 | Valerie Orellana (12) | Grover Cleveland High School | Reseda | CA |
| 81 | :55.94 | Alison Meng (12) | Sauk Prairie High School | Prairie du Sac | WI |
| 82 | :55.99 | Victoria Oslund (12) | Tuscola High School | Waynesville | NC |
| 82 | :55.99 | Claire VanFossen (11) | Upper Arlington High School | Upper Arlington | OH |
| 84 | :56.01 | Kelsey Ochsner (9 ) | Campbell County High School | Gillette | WY |
| 85 | :56.04 | Hannah Cooper (12) | Memorial High School | Houston | TX |
| 86 | :56.05 | Elizabeth Pepper (12) | Walter Johnson High School | Bethesda | MD |
| 87 | :56.08 | Anna Elling (10) | Burnsville High School | Burnsville | MN |
| 87 | :56.08 | Katie Miller (10) | Akron Firestone High School | Akron | OH |
| 89 | :56.09 | Emily Holt (11) | DuPont Manual High School | Louisville | KY |
| 90 | :56.10 | Courtney Whyte (12) | Campolindo High School | Moraga | CA |
| 91 | :56.11 | Anna DeMonte (11) | Ann Arbor Huron High School | Ann Arbor | MI |
| 92 | :56.15 | Angela Sun (11) | Great Neck South High School | Great Neck | NY |
| 93 | :56.16 | Amber Carter (12) | Mirabeau B. Lamar High School | Houston | TX |
| 93 | :56.16 | Amelia Schachter (11) | Arroyo Grande High School | Arroyo Grande | CA |
| 95 | :56.18 | Marie-Pierre Delisle (9 ) | Archbishop Mitty High School | San Jose | CA |
| 96 | :56.19 | Makenzie Garringer (10) | Napoleon High School | Napoleon | OH |
| 96 | :56.19 | Natalie Morris (12) | Olathe Northwest High School | Olathe | KS |
| 96 | :56.19 | Brynne Wong (10) | Corona Del Mar High School | Newport Beach | CA |
| 99 | :56.20 | Michelle Gasior (12) | Assumption High School | Louisville | KY |
| 99 | :56.20 | Leah Pfitzer (10) | Kingwood High School | Kingwood | TX |
| 99 | :56.20 | Lila Vera (9 ) | Laguna Beach High School | Laguna Beach | CA |