| Statistic | Reportedincidents | /100k people | Old Monroe/100k people | Missouri/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,799 (estimate) | 2,554 | 2,281 |
| Murder | n/a | n/a | n/a | 9.1 | 5.7 |
| Rape | n/a | n/a | n/a | 46.4 | 38.0 |
| Robbery | n/a | n/a | n/a | 52.9 | 66.5 |
| Assault | n/a | n/a | n/a | 350.2 | 264.1 |
| Violent crime | n/a | n/a (estimate) | 503 (estimate) | 459 | 364 |
| Burglary | n/a | n/a | n/a | 251.2 | 250.7 |
| Theft | n/a | n/a | n/a | 1,365.4 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 478.6 | 318.7 |
| Property crime | n/a | n/a (estimate) | 2,296 (estimate) | 2,095 | 1,917 |


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| Item | Old Monroe | Missouri | National |
| Law enforcement employees (officers & civilians) | 1 | 12,115 | 558,732 |
| Police officers & civilians /1000 residents | 3.7 | 3.7 | 3.3 |
| State | Total offenders | Missouri /100K | National /100K |
| Missouri | 19,657 | 344 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Cottleville, MO | 5,439 | 69 | 154 | 223 |
| St. Paul, MO | 2,463 | 72 | 329 | 401 |
| Lake St. Louis, MO | 16,357 | 89 | 464 | 553 |
| Moscow Mills, MO | 3,234 | 97 | 511 | 608 |
| O'Fallon, MO | 88,132 | 86 | 697 | 782 |
| Winfield, MO | 1,954 | 373 | 560 | 933 |
| Dardenne Prairie, MO | 13,385 | 175 | 798 | 973 |
| Old Monroe, MO | 173 | 503 | 2,296 | 2,799 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Ollie, IA | 173 | 375 | 1,928 | 2,303 |
| Tanana, AK | 173 | 1,080 | 2,791 | 3,871 |
| Jackson Center, PA | 173 | 323 | 1,915 | 2,238 |
| Barnes, KS | 173 | 630 | 3,066 | 3,696 |
| Chickaloon, AK | 173 | 788 | 2,038 | 2,827 |
| Old Monroe, MO | 173 | 503 | 2,296 | 2,799 |