| Statistic | Reportedincidents | /100k people | Letcher/100k people | South Dakota/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | n/a (estimate) | 1,948 | 2,119 |
| Murder | n/a | n/a | n/a | 4.7 | 5.0 |
| Rape | n/a | n/a | n/a | 51.5 | 37.5 |
| Robbery | n/a | n/a | n/a | 22.6 | 60.6 |
| Assault | n/a | n/a | n/a | 283.6 | 256.1 |
| Violent crime | n/a | n/a (estimate) | n/a (estimate) | 362 | 359 |
| Burglary | n/a | n/a | n/a | 194.7 | 229.2 |
| Theft | n/a | n/a | n/a | 1,195.5 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 195.9 | 258.8 |
| Property crime | n/a | n/a (estimate) | n/a (estimate) | 1,586 | 1,760 |


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| Item | Letcher | 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 |
| Mount Vernon, SD | 500 | 399 | 1,750 | 2,149 |
| Mitchell, SD | 15,599 | 263 | 1,967 | 2,230 |
| Woonsocket, SD | 748 | 487 | 2,134 | 2,621 |
| Artesian, SD | 181 | 531 | 2,328 | 2,859 |
| Letcher, SD | 191 | n/a | n/a | n/a |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Matoaka, WV | 191 | 347 | 1,619 | 1,966 |
| Belle Valley, OH | 191 | 368 | 1,943 | 2,311 |
| Merom, IN | 191 | 465 | 2,048 | 2,513 |
| Jamison City, PA | 191 | 291 | 1,699 | 1,991 |
| Mellette, SD | 191 | 462 | 2,024 | 2,486 |
| Letcher, SD | 191 | n/a | n/a | n/a |