| Statistic | Reportedincidents | /100k people | Gardner/100k people | Illinois/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 715 (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) | 103 (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) | 612 (estimate) | 1,715 | 1,760 |


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| Item | Gardner | 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 |
| Mazon, IL | 1,222 | 0 | 0 | 0 |
| Diamond, IL | 2,786 | 0 | 37 | 37 |
| Godley, IL | 691 | 0 | 308 | 308 |
| Braidwood, IL | 6,338 | 65 | 389 | 454 |
| Coal City, IL | 4,941 | 103 | 361 | 464 |
| Essex, IL | 1,083 | 90 | 536 | 626 |
| Herscher, IL | 1,489 | 97 | 575 | 672 |
| Gardner, IL | 1,429 | 103 | 612 | 715 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Brookside Village, TX | 1,429 | 106 | 553 | 659 |
| Summerdale, AL | 1,429 | 871 | 2,985 | 3,856 |
| Allendale, CA | 1,429 | 68 | 292 | 360 |
| Breckenridge, MI | 1,428 | 0 | 1,191 | 1,191 |
| Advance, MO | 1,430 | 150 | 826 | 977 |
| Gardner, IL | 1,429 | 103 | 612 | 715 |