| Statistic | Reportedincidents | /100k people | Niantic/100k people | Illinois/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,818 (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) | 406 (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) | 2,412 (estimate) | 1,715 | 1,760 |


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| Item | Niantic | 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 Mound, IL | 1,171 | 0 | 0 | 0 |
| Mount Pulaski, IL | 1,729 | 0 | 133 | 133 |
| Mount Zion, IL | 5,927 | 51 | 514 | 566 |
| Forsyth, IL | 3,591 | 82 | 484 | 566 |
| Macon, IL | 1,122 | 124 | 739 | 863 |
| Edinburg, IL | 1,114 | 128 | 759 | 887 |
| Warrensburg, IL | 1,292 | 130 | 770 | 900 |
| Niantic, IL | 680 | 406 | 2,412 | 2,818 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Heuvelton, NY | 680 | 542 | 2,453 | 2,995 |
| Metamora, MI | 680 | 368 | 1,170 | 1,538 |
| Oak Park, GA | 680 | 513 | 2,638 | 3,151 |
| Central City, AR | 680 | 0 | 644 | 644 |
| Mount Victory, OH | 680 | 361 | 1,903 | 2,263 |
| Niantic, IL | 680 | 406 | 2,412 | 2,818 |