Standings for the 2021 Class A girls basketball season are below.
(Last updated Feb. 20, 2021)
Southeast A
| Conf. | Overall | |
| Billings Central | 5-1 | 13-1 |
| Hardin | 4-2 | 10-3 |
| Laurel | 3-3 | 10-4 |
| Livingston | 0-6 | 7-8 |
Northeast A
| Conf. | Overall | |
| Havre | 8-0 | 12-1 |
| Glendive | 4-4 | 7-8 |
| Sidney | 4-4 | 7-8 |
| Miles City | 2-6 | 2-11 |
| Lewistown | 2-6 | 3-11 |
Southwest A
| Conf. | Overall | |
| Butte Central | 7-3 | 11-4 |
| Dillon | 6-4 | 9-6 |
| Hamilton | 6-4 | 10-5 |
| Frenchtown | 5-5 | 6-9 |
| Corvallis | 5-5 | 6-9 |
| Stevensville | 1-9 | 2-12 |
Northwest A
| Conf. | Overall | |
| Columbia Falls | 10-0 | 16-0 |
| Whitefish | 7-3 | 11-4 |
| Browning | 6-4 | 8-5 |
| Ronan | 5-5 | 9-7 |
| Libby | 2-8 | 3-11 |
| Polson | 0-10 | 0-15 |
