| Statistic | Reportedincidents | /100k people | Ionia/100k people | Missouri/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 3,549 (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) | 638 (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) | 2,911 (estimate) | 2,095 | 1,917 |


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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 | 0 | 0 |
| Lincoln, MO | 1,210 | 248 | 993 | 1,242 |
| Windsor, MO | 2,976 | 233 | 1,066 | 1,299 |
| Sedalia, MO | 21,634 | 390 | 1,587 | 1,977 |
| Green Ridge, MO | 473 | 587 | 2,681 | 3,268 |
| Smithton, MO | 511 | 598 | 2,727 | 3,325 |
| Ionia, MO | 75 | 638 | 2,911 | 3,549 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Church Creek, MD | 75 | 554 | 2,694 | 3,249 |
| Mercer, ND | 75 | 189 | 1,372 | 1,561 |
| False Pass, AK | 75 | 608 | 1,571 | 2,179 |
| Ebro, MN | 75 | 422 | 2,750 | 3,172 |
| Russellville, IL | 75 | 463 | 2,572 | 3,035 |
| Ionia, MO | 75 | 638 | 2,911 | 3,549 |