Standings for the 2019-20 Class A boys basketball season are below.
(Last updated: Feb. 24, 2020)
Southeast A
| Conf. | Overall | |
| Hardin | 6-0 | 18-0 |
| Billings Central | 3-3 | 11-7 |
| Livingston | 2-4 | 13-5 |
| Laurel | 1-5 | 10-8 |
Northeast A
| Conf. | Overall | |
| Miles City | 7-1 | 11-7 |
| Havre | 5-3 | 11-7 |
| Lewistown | 5-3 | 7-11 |
| Glendive | 3-5 | 8-9 |
| Sidney | 0-8 | 4-14 |
Southwest A
| Conf. | Overall | |
| Butte Central | 8-2 | 15-3 |
| Hamilton | 8-2 | 15-3 |
| Frenchtown | 8-2 | 16-3 |
| Corvallis | 4-6 | 9-10 |
| Dillon | 2-8 | 7-12 |
| Stevensville | 0-10 | 0-19 |
Northwest A
| Conf. | Overall | |
| Browning | 9-1 | 14-4 |
| Polson | 7-3 | 11-7 |
| Libby | 6-4 | 12-7 |
| Whitefish | 3-7 | 8-11 |
| Columbia Falls | 3-7 | 4-15 |
| Ronan | 2-8 | 8-11 |
