| 1 | Aurora Roghair JR | Iowa City West | 1:50.97 | Coralville Recreation Center | 09/03/2019 |
| 2 | Berit Quass SR | Dowling Catholic | 1:51.85 | Trail Point Aquatics & Wellness | 10/24/2019 |
| 3 | Katie Broderick SR | Dowling Catholic | 1:53.66 | Trail Point Aquatics & Wellness | 10/24/2019 |
| 4 | Scarlet Martin SO | Iowa City West | 1:54.01 | Coralville Recreation Center | 10/08/2019 |
| 5 | Mary Sweetman JR | Dowling Catholic | 1:54.34 | Dowling Catholic High School | 10/15/2019 |
| 6 | Jessi Wigham FR | Waukee | 1:54.44 | Valley High School | 09/28/2019 |
| 7 | Emma Bachelder SR | Decorah | 1:54.96 | Boone High School | 10/19/2019 |
| 8 | Meg Susil JR | Dowling Catholic | 1:55.04 | Linn-Mar Aquatic Center | 09/14/2019 |
| 9 | Grace Frericks SO | Cedar Falls | 1:55.31 | Holmes Swimming Pool | 10/05/2019 |
| 10 | Hayley Kimmel FR | Linn-Mar | 1:55.44 | Kennedy High School | 10/01/2019 |
| 11 | Brinley Horras SR | Ames | 1:56.12 | Ames High School | 09/03/2019 |
| 12 | Karlie Welbes SR | Wahlert Catholic | 1:56.91 | Loras College | 09/24/2019 |