| Time | Date | Name | Meet |
|---|---|---|---|
| 5:05.78 | Feb. 11, 2022 | Maddie Wagner | CHSAA Girls 3A State Championship |
| 5:15.38 | Feb. 8, 2018 | Ava Giesbrecht | CHSAA 3A Girls State Championship |
| 5:17.94 | Feb. 8, 2013 | Kelsey Oettinger | 13 Colorado Girls Best Times |
| 5:21.62 | Feb. 10, 2012 | Kelsey Oettinger | 12 Colorado Girls State 4A Championships |
| 5:32.01 | Feb. 11, 2011 | Kelsey Oettinger | Colorado Girls State 4A Championships |
| 5:46.48 | Feb. 12, 2010 | Kelsey Oettinger | Colorado 4A Girls State Championships |
