| Statistic | Reportedincidents | /100k people | Oldham/100k people | South Dakota/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,408 (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) | 448 (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) | 1,961 (estimate) | 1,586 | 1,760 |


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| Item | Oldham | 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 | 125 | 546 | 671 |
| Arlington, SD | 1,007 | 146 | 639 | 785 |
| Nunda, SD | 50 | 406 | 1,778 | 2,184 |
| Lake Preston, SD | 448 | 413 | 1,811 | 2,225 |
| Ramona, SD | 413 | 422 | 1,850 | 2,272 |
| Howard, SD | 754 | 486 | 2,129 | 2,615 |
| Sinai, SD | 166 | 510 | 2,235 | 2,745 |
| Oldham, SD | 131 | 448 | 1,961 | 2,408 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Roscoe, MN | 131 | 376 | 2,349 | 2,725 |
| Ferdinand, ID | 131 | 275 | 876 | 1,151 |
| Browndell, TX | 131 | 572 | 3,001 | 3,574 |
| McKinley, MN | 131 | 315 | 1,968 | 2,283 |
| St. Paul, AR | 131 | 702 | 2,340 | 3,042 |
| Oldham, SD | 131 | 448 | 1,961 | 2,408 |