| Name | Time | Date | Meet |
|---|---|---|---|
| Julia Barry | 56.64 | Nov. 5, 2022 | IHSA Girls Sectional - Lockport (Twp.) |
| Julia Barry | 57.18 | Nov. 12, 2021 | IHSA Girls State Championships |
| Julia Barry | 58.45 | Oct. 22, 2021 | SWSC Conference Championship |
| Jenna Falsey | 58.57 | Nov. 11, 2017 | IHSA GirlsSwimming and Di |
| Tara Capouch | 59.84 | Nov. 30, 2011 | 2011-12 Illinois Girls Championships |
