| Place | Time | Swimmer (Yr) | School | City | State |
| 1 | 1:42.38 | Katie Ledecky (11) | Stone Ridge School | Bethesda | MD |
| 2 | 1:44.66 | Kathryn McLaughlin (11) | Santa Margarita Catholic High School | Rancho Santa Margarita | CA |
| 3 | 1:45.91 | Courtney Harnish (9 ) | West York Area High School | York | PA |
| 4 | 1:46.51 | Megan Moroney (11) | Saint Andrew's School | Boca Raton | FL |
| 5 | 1:46.80 | Abby Jagdfeld (12) | Waukesha South High School | Waukesha | WI |
| 6 | 1:46.95 | Claire Adams (10) | Carmel High School | Carmel | IN |
| 7 | 1:46.98 | Kirsten Jacobsen (10) | Barrington High School | Barrington | IL |
| 8 | 1:47.10 | Jennifer Campbell (11) | Gunn High School | Palo Alto | CA |
| 9 | 1:47.14 | Jasmine K Mau (12) | Punahou School | Honolulu | HI |
| 10 | 1:47.21 | Erin Falconer (11) | Mundelein High School | Mundelein | IL |
| 11 | 1:47.26 | Meaghan Raab (12) | Hershey High School | Hershey | PA |
| 12 | 1:47.31 | Cecelia Williams (12) | Lawton Chiles High School | Tallahassee | FL |
| 13 | 1:47.32 | Lauren Barber (11) | Wilmington Area High School | New Wilmington | PA |
| 14 | 1:47.37 | Jessica Merritt (10) | William A. Hough High School | Cornelius | NC |
| 15 | 1:47.42 | Alexandra Aitchison (11) | East Lake High School | Tarpon Springs | FL |
| 16 | 1:47.51 | Rachel Thonpson (12) | Foothill High School | Santa Ana | CA |
| 17 | 1:47.61 | Madison Wright (11) | Waterford United | Waterford | MI |
| 18 | 1:47.67 | Hannah Kukurugya (9 ) | Crown Point High School | Crown Point | IN |
| 19 | 1:47.76 | Kaitlyn Albertoli (11) | Jserra Catholic High School | San Juan Capistrano | CA |
| 20 | 1:47.78 | Alexandra Buscher (11) | Memorial High School | Houston | TX |
| 21 | 1:47.90 | Mollie Pulte (11) | Marian High School | Bloomfield Hills | MI |
| 21 | 1:47.90 | Zoe Thatcher (12) | Mason High School | Mason | OH |
| 23 | 1:47.93 | Moriah Simonds (10) | Granada High School | Livermore | CA |
| 24 | 1:47.95 | Leah Stevens (11) | Sacred Heart Academy | Louisville | KY |
| 25 | 1:48.03 | Ellen Berdusco (11) | Saint Stephen's Episcopal School | Bradenton | FL |
| 26 | 1:48.14 | Valerie Hull (12) | Westview High School | San Diego | CA |
| 27 | 1:48.21 | Ella Moynihan (11) | Arapahoe High School | Centennial | CO |
| 28 | 1:48.24 | Jessica Hodgson (12) | The Bolles School | Jacksonville | FL |
| 29 | 1:48.26 | Zhada Fields (11) | Toledo St. Ursula Academy | Toledo | OH |
| 29 | 1:48.26 | Sammie Hashbarger (12) | McKinney High School | McKinney | TX |
| 31 | 1:48.33 | Catherine Ladd (12) | Willow Glen High School | San Jose | CA |
| 32 | 1:48.36 | Isabella Rongione (9 ) | Langley High School | McLean | VA |
| 33 | 1:48.38 | Claire Gilmore (11) | Mariemont High School | Cincinnati | OH |
| 34 | 1:48.39 | Brittany Usinger (11) | Acalanes High School | Lafayette | CA |
| 35 | 1:48.49 | Katie Portz (10) | Skyline High School | Ann Arbor | MI |
| 36 | 1:48.50 | Shannon McKernan (11) | Germantown Academy | Fort Washington | PA |
| 37 | 1:48.56 | Taylor Ault (9 ) | Sonora High School | La Habra | CA |
| 38 | 1:48.60 | Brooke Lorentzen (12) | Capistrano Valley High School | Mission Viejo | CA |
| 39 | 1:48.67 | GraceAnne Long (11) | Upper Arlington High School | Upper Arlington | OH |
| 40 | 1:48.71 | Rebecca Postoll (11) | Charlotte Catholic High School | Charlotte | NC |
| 41 | 1:48.76 | Sarah Shimomura (11) | Archbishop Mitty High School | San Jose | CA |
| 42 | 1:48.79 | Haley Yelle (9 ) | Mansfield Legacy High School | Mansfield | TX |
| 43 | 1:48.81 | Lauren Case (10) | Woodsotck High School | Woodstock | GA |
| 43 | 1:48.81 | Lauren E. Heller (10) | Walsh Jesuit High School | Cuyahoga Falls | OH |
| 45 | 1:48.85 | Summer Brown (12) | Western High School | Russiaville | IN |
| 46 | 1:48.98 | Lauryn Parrish (9 ) | Fishers High School | Fishers | IN |
| 47 | 1:49.00 | Michelle Turek (11) | East Lake High School | Tarpon Springs | FL |
| 48 | 1:49.14 | Kirsten Vose (11) | Flintridge Sacred Heart Academy | La Canada Flintridge | CA |
| 49 | 1:49.15 | Erica Laning (9 ) | Farragut High School | Knoxville | TN |
| 50 | 1:49.18 | Isabel Wyer (12) | Minnetonka High School | Minnetonka | MN |
| 51 | 1:49.23 | Sandra Soe (11) | Pioneer High School | San Jose | CA |
| 52 | 1:49.25 | McKenna Meyer (10) | Galena High School | Reno | NV |
| 53 | 1:49.28 | Molly Treble (12) | Massapequa High School | Massapequa Park | NY |
| 54 | 1:49.33 | Natalie Amberg (12) | Carondelet High School | Concord | CA |
| 55 | 1:49.38 | Amanda Richey (12) | Boulder High School | Boulder | CO |
| 56 | 1:49.41 | Casey Lawson (11) | St. Rose High School | Belmar | NJ |
| 57 | 1:49.42 | Hannah Lindsey (10) | Winston Churchill High School | Potomac | MD |
| 58 | 1:49.43 | Allyssa Fluit (10) | Southeast Polk High School | Pleasant Hill | IA |
| 59 | 1:49.44 | Tommie Dillione (12) | Council Rock North High School | Newtown | PA |
| 60 | 1:49.45 | Courtney Evensen (11) | Robbinsdale Armstrong High School | Plymouth | MN |
| 60 | 1:49.45 | Kaersten Meitz (12) | Waukesha South High School | Waukesha | WI |
| 62 | 1:49.46 | Chenoa Devine (10) | Davis Senior High School | Davis | CA |
| 62 | 1:49.46 | Hannah James (12) | Charlotte High School | Punta Gorda | FL |
| 64 | 1:49.48 | Siena Salvaggio (10) | Parkland High School | Allentown | PA |
| 65 | 1:49.50 | Spence Atkins (10) | Riverview High School | Sarasota | FL |
| 66 | 1:49.51 | Brittney Beetcher (9 ) | Fairview High School | Boulder | CO |
| 67 | 1:49.56 | Quinn MacMillan (12) | Central Bucks West High School | Doylestown | PA |
| 68 | 1:49.57 | Megan Byrnes (10) | Oakton High School | Vienna | VA |
| 68 | 1:49.57 | Heather MacDougall (10) | Crescenta Valley High School | La Crescenta | CA |
| 70 | 1:49.58 | Alexandria Wittman (12) | Osceola High School | Seminole | FL |
| 71 | 1:49.59 | Robyn Dryer (11) | West Springfield High School | Springfield | VA |
| 72 | 1:49.66 | Amanda Nunan (9 ) | Ocean City High School | Ocean City | NJ |
| 73 | 1:49.67 | Shelly Drozda (11) | Mountain Range High School | Westminster | CO |
| 74 | 1:49.68 | Sydney King (12) | Granville High School | Granville | OH |
| 74 | 1:49.68 | Erin Voss (10) | Northampton High School | Northampton | MA |
| 76 | 1:49.71 | Kat Wickham (12) | Palm Springs High School | Palm Springs | CA |
| 77 | 1:49.74 | Mary Katherine Kish (12) | The Collegiate School | Richmond | VA |
| 78 | 1:49.75 | Bailey Nero (11) | Fossil Ridge High School | Fort Collins | CO |
| 79 | 1:49.78 | Caitlin Clements (9 ) | Magnolia High School | Magnolia | TX |
| 80 | 1:49.81 | Olivia Treski (11) | Castle High School | Newburgh | IN |
| 81 | 1:49.84 | Sydney Franzen (11) | Santa Margarita Catholic High School | Rancho Santa Margarita | CA |
| 82 | 1:49.91 | Lisa Kaunitz (10) | Monta Vista High School | Cupertino | CA |
| 83 | 1:49.94 | Jessica Sloan (12) | Magnolia West High School | Magnolia | TX |
| 84 | 1:49.97 | Claire Doeer (10) | Hawken School | Gates Mills | OH |
| 85 | 1:50.00 | Jennifer Marrkand (12) | Westford Academy | Westford | MA |
| 86 | 1:50.03 | Danielle Liu (12) | Phillips Academy | Andover | MA |
| 87 | 1:50.04 | Elizabeth Devitt (12) | Santa Margarita Catholic High School | Rancho Santa Margarita | CA |
| 88 | 1:50.06 | Kenisha Liu (10) | Ruben S. Ayala High School | Chino Hills | CA |
| 89 | 1:50.07 | Sierra Schmidt (9 ) | Germantown Academy | Fort Washington | PA |
| 90 | 1:50.08 | Chantal Nack (11) | Mankato West High School | Mankato | MN |
| 90 | 1:50.08 | Kira Zubar (12) | Eden Prairie High School | Eden Prairie | MN |
| 92 | 1:50.09 | Anna Jahns (11) | Brookwood High School | Snellville | GA |
| 93 | 1:50.11 | Claire Therien (10) | San Ramon Valley High School | Danville | CA |
| 94 | 1:50.18 | Mary Katie Woods (10) | Livermore High School | Livermore | CA |
| 95 | 1:50.19 | Natasha Gvakharia Mgebrishvili (11) | The Bolles School | Jacksonville | FL |
| 95 | 1:50.19 | Lauren Rhodes (12) | Charlotte Catholic High School | Charlotte | NC |
| 95 | 1:50.19 | Grace Tierney (11) | Loyola Academy | Wilmette | IL |
| 98 | 1:50.20 | Claire Rasmus (11) | The Bolles School | Jacksonville | FL |
| 99 | 1:50.23 | Verity Abel (12) | Staples High School | Westport | CT |
| 100 | 1:50.25 | Monica Sowinski (11) | Greater Latrobe High School | Latrobe | PA |