| Statistic | Reportedincidents | /100k people | Oak Grove/100k people | Illinois/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 3,238 (estimate) | 2,004 | 2,119 |
| Murder | n/a | n/a | n/a | 5.8 | 5.0 |
| Rape | n/a | n/a | n/a | 46.9 | 37.5 |
| Robbery | n/a | n/a | n/a | 90.2 | 60.6 |
| Assault | n/a | n/a | n/a | 146.3 | 256.1 |
| Violent crime | n/a | n/a (estimate) | 467 (estimate) | 289 | 359 |
| Burglary | n/a | n/a | n/a | 290.5 | 229.2 |
| Theft | n/a | n/a | n/a | 1,134.4 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 290.4 | 258.8 |
| Property crime | n/a | n/a (estimate) | 2,771 (estimate) | 1,715 | 1,760 |


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| Item | Oak Grove | Illinois | National |
| Law enforcement employees (officers & civilians) | n/a | 30,690 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 2.6 | 3.3 |
| State | Total offenders | Illinois /100K | National /100K |
| Illinois | 32,213 | 263 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Blue Grass, IA | 2,058 | 0 | 0 | 0 |
| Buffalo, IA | 1,090 | 86 | 86 | 173 |
| Walcott, IA | 1,802 | 129 | 129 | 259 |
| Le Claire, IA | 3,969 | 126 | 379 | 505 |
| Orion, IL | 1,895 | 0 | 524 | 524 |
| Aledo, IL | 3,625 | 113 | 422 | 535 |
| Port Byron, IL | 2,028 | 90 | 531 | 621 |
| Oak Grove, IL | 427 | 467 | 2,771 | 3,238 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Hopewell, IL | 427 | 245 | 1,454 | 1,699 |
| Spillville, IA | 427 | 285 | 1,523 | 1,808 |
| Hawk Cove, TX | 427 | 611 | 3,205 | 3,816 |
| Glendale, UT | 427 | 312 | 1,910 | 2,222 |
| Kurten, TX | 427 | 379 | 1,986 | 2,365 |
| Oak Grove, IL | 427 | 467 | 2,771 | 3,238 |