| Statistic | Reportedincidents | /100k people | Ionia/100k people | Missouri/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 3,339 (estimate) | 2,403 | 2,119 |
| Murder | n/a | n/a | n/a | 7.8 | 5.0 |
| Rape | n/a | n/a | n/a | 45.2 | 37.5 |
| Robbery | n/a | n/a | n/a | 51.5 | 60.6 |
| Assault | n/a | n/a | n/a | 357.5 | 256.1 |
| Violent crime | n/a | n/a (estimate) | 642 (estimate) | 462 | 359 |
| Burglary | n/a | n/a | n/a | 236.3 | 229.2 |
| Theft | n/a | n/a | n/a | 1,306.5 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 398.4 | 258.8 |
| Property crime | n/a | n/a (estimate) | 2,697 (estimate) | 1,941 | 1,760 |


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| Item | Ionia | Missouri | National |
| Law enforcement employees (officers & civilians) | n/a | 12,115 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 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 |
| Cole Camp, MO | 1,334 | 0 | 168 | 168 |
| Windsor, MO | 2,976 | 235 | 987 | 1,222 |
| Lincoln, MO | 1,210 | 164 | 1,311 | 1,475 |
| Green Ridge, MO | 473 | 591 | 2,484 | 3,075 |
| Smithton, MO | 511 | 601 | 2,527 | 3,128 |
| Sedalia, MO | 21,634 | 545 | 2,635 | 3,180 |
| Ionia, MO | 75 | 642 | 2,697 | 3,339 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Big Lake, MO | 75 | 187 | 784 | 971 |
| Gabbs, NV | 75 | 453 | 2,476 | 2,929 |
| Rutledge, MO | 75 | 747 | 3,137 | 3,883 |
| Church Creek, MD | 75 | 546 | 2,667 | 3,213 |
| Russellville, IL | 75 | 432 | 2,564 | 2,996 |
| Ionia, MO | 75 | 642 | 2,697 | 3,339 |