| Statistic | Reportedincidents | /100k people | Erwin/100k people | South Dakota/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | n/a (estimate) | 1,968 | 2,281 |
| Murder | n/a | n/a | n/a | 2.9 | 5.7 |
| Rape | n/a | n/a | n/a | 50.3 | 38.0 |
| Robbery | n/a | n/a | n/a | 20.4 | 66.5 |
| Assault | n/a | n/a | n/a | 276.1 | 264.1 |
| Violent crime | n/a | n/a (estimate) | n/a (estimate) | 350 | 364 |
| Burglary | n/a | n/a | n/a | 222.1 | 250.7 |
| Theft | n/a | n/a | n/a | 1,151.4 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 244.9 | 318.7 |
| Property crime | n/a | n/a (estimate) | n/a (estimate) | 1,618 | 1,917 |


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| Item | Erwin | South Dakota | National |
| Law enforcement employees (officers & civilians) | n/a | 995 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 2.2 | 3.3 |
| State | Total offenders | South Dakota /100K | National /100K |
| South Dakota | n/a | n/a | n/a |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| De Smet, SD | 1,041 | 121 | 557 | 678 |
| Lake Norden, SD | 531 | 387 | 1,791 | 2,179 |
| Lake Preston, SD | 448 | 400 | 1,848 | 2,248 |
| Hayti, SD | 391 | 434 | 2,006 | 2,440 |
| Bryant, SD | 735 | 451 | 2,085 | 2,536 |
| Badger, SD | 94 | 477 | 2,206 | 2,683 |
| Willow Lake, SD | 445 | 497 | 2,297 | 2,794 |
| Erwin, SD | 54 | n/a | n/a | n/a |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Newport, NE | 54 | 296 | 2,546 | 2,842 |
| Turton, SD | 54 | 384 | 1,775 | 2,159 |
| Kirkman, IA | 54 | 349 | 1,797 | 2,146 |
| Perryville, AK | 54 | 1,173 | 3,033 | 4,206 |
| Rampart, AK | 54 | 1,127 | 2,914 | 4,041 |
| Erwin, SD | 54 | n/a | n/a | n/a |