2021 Northern Illinois Huskies Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 14 | 70 | 634 | 5.0 | 45.3 |
| at Home | 6 | 24 | 228 | 4.0 | 38.0 |
| on Road/Neutral Site | 8 | 46 | 406 | 5.8 | 50.8 |
| in Wins | 9 | 49 | 453 | 5.4 | 50.3 |
| in Losses | 5 | 21 | 181 | 4.2 | 36.2 |
| vs. Conference | 9 | 39 | 377 | 4.3 | 41.9 |
| vs. Non-Conference | 5 | 31 | 257 | 6.2 | 51.4 |
| vs. Ranked (AP) | 1 | 6 | 57 | 6.0 | 57.0 |
| vs. Unranked (AP) | 13 | 64 | 577 | 4.9 | 44.4 |
| vs. FBS (I-A) | 13 | 63 | 576 | 4.8 | 44.3 |
| vs. FCS (I-AA) | 1 | 7 | 58 | 7.0 | 58.0 |
| vs. FBS Winning | 7 | 31 | 300 | 4.4 | 42.9 |
| vs. FBS Non-Winning | 6 | 32 | 276 | 5.3 | 46.0 |
| vs. FBS Power 5 | 2 | 17 | 139 | 8.5 | 69.5 |
| vs. FBS non-Power 5 | 11 | 46 | 437 | 4.2 | 39.7 |
| in August/September | 4 | 29 | 247 | 7.3 | 61.8 |
| in October | 4 | 20 | 193 | 5.0 | 48.3 |
| in November | 4 | 14 | 129 | 3.5 | 32.3 |
| in December/January | 2 | 7 | 65 | 3.5 | 32.5 |