| Time | Date | Name | Meet |
|---|---|---|---|
| 4:49.64 | Feb. 13, 2021 | Maisyn Klimczak | IHSAA Girls High School State Championship |
| 4:52.45 | Feb. 12, 2021 | Maisyn Klimczak | IHSAA Girls High School State Championship - Prelims |
| 4:53.88 | Feb. 5, 2021 | Maisyn Klimczak | IHSAA Girls Sectional - Valparaiso |
| 4:55.29 | Feb. 10, 2017 | Lauryn Kallay | Indiana Girls State Championships |
| 4:55.31 | Feb. 12, 2016 | Lauryn Kallay | Indiana Girls State Championships |
| 4:55.51 | Feb. 8, 2013 | Julia Campbell | 13 Indiana Girls Championships |
| 4:56.25 | Feb. 13, 2009 | Olivia Kabacinski | 09 Indiana Girls State Swimming Championships |
