| Mark | Athlete | School | Year | Meet |
|---|
| 11:07.82 | Claire Rutherford | Gallatin (Bozeman) (AA) | 11 | State AA Championship |
| 11:12.95 | Kylee Neil | Bozeman (AA) | 9 | State AA Championship |
| 11:17.09 | Lauren Bissen | Glacier (AA) | 9 | Archie Roe Invitational |
| 11:24.65 | Gia Petrini | Missoula Hellgate (AA) | 10 | MCPS Invitational |
| 11:25.94 | Stella Diaz | Missoula Hellgate (AA) | 12 | Archie Roe Invitational |
| 11:31.28 | Jamison Molloy | Missoula Hellgate (AA) | 11 | State AA Championship |
| 11:32.13 | Kortney McKay | Helena (AA) | 9 | State AA Championship |
| 11:33.75 | Kate Lee | Helena (AA) | 10 | State AA Championship |
| 11:36.18 | Hazel Cooper | Gallatin (Bozeman) (AA) | 9 | Last Chance Invite |
| 11:39.35 | Josie Wilson | Flathead (AA) | 11 | Western AA Divisional |
| 11:43.03 | Tula Higman | Bozeman (AA) | 9 | State AA Championship |
| 11:43.79 | Lilli Rumsey Eash | Flathead (AA) | 12 | Western AA Divisional |
| 11:46.07 | Isabella Determan | Gallatin (Bozeman) (AA) | 11 | Last Chance Invite |
| 11:48.49 | Brianna Plant | Helena (AA) | 12 | Great Falls Optimist Meet |
| 11:54.59 | Audrey Baldwin | Missoula Hellgate (AA) | 12 | Archie Roe Invitational |
| 11:55.97 | Anna Tretter | Glacier (AA) | 11 | Western AA Divisional |
| 11:56.16 | Bailey Gable | Glacier (AA) | 12 | Archie Roe Invitational |
| 11:56.53 | Ava Greenwell | Billings Skyview (AA) | 10 | State AA Championship |
| 11:58.27 | Serena Sproles | Bozeman (AA) | 12 | Great Falls Optimist Meet |
| 12:02.09 | Rose Wiltse | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 12:03.25 | Adelaide Sugden | Missoula Big Sky (AA) | 11 | Western AA Divisional |
| 12:04.94 | Addison Hale | Billings West (AA) | 9 | State AA Championship |
| 12:08.42 | Sofia Hinderman | Helena (AA) | 12 | Great Falls Optimist Meet |
| 12:09.90 | Nomi Friedman | Bozeman (AA) | 12 | Midland Roundtable Top 10 |