| Statistic | Reportedincidents | /100k people | Crystal Lake/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,979 (estimate) | 1,540 | 2,119 |
| Murder | n/a | n/a | n/a | 2.1 | 5.0 |
| Rape | n/a | n/a | n/a | 35.2 | 37.5 |
| Robbery | n/a | n/a | n/a | 18.7 | 60.6 |
| Assault | n/a | n/a | n/a | 187.2 | 256.1 |
| Violent crime | n/a | n/a (estimate) | 312 (estimate) | 243 | 359 |
| Burglary | n/a | n/a | n/a | 199.1 | 229.2 |
| Theft | n/a | n/a | n/a | 962.6 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 135.1 | 258.8 |
| Property crime | n/a | n/a (estimate) | 1,666 (estimate) | 1,297 | 1,760 |


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| Item | Crystal Lake | Iowa | National |
| Law enforcement employees (officers & civilians) | n/a | 3,827 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 1.8 | 3.3 |
| State | Total offenders | Iowa /100K | National /100K |
| Iowa | 6,040 | 205 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Britt, IA | 1,761 | 104 | 553 | 656 |
| Lake Mills, IA | 2,108 | 105 | 558 | 663 |
| Garner, IA | 3,060 | 114 | 607 | 720 |
| Forest City, IA | 4,117 | 196 | 1,048 | 1,244 |
| Buffalo Center, IA | 969 | 267 | 1,426 | 1,693 |
| Thompson, IA | 496 | 277 | 1,476 | 1,753 |
| Wesley, IA | 451 | 301 | 1,609 | 1,910 |
| Crystal Lake, IA | 264 | 312 | 1,666 | 1,979 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Hallwood, VA | 264 | 332 | 2,390 | 2,721 |
| Bunker, MO | 264 | 681 | 2,861 | 3,542 |
| Morgan City, MS | 264 | 315 | 2,043 | 2,358 |
| Fenton, LA | 264 | 766 | 3,382 | 4,148 |
| Bliss, ID | 264 | 331 | 1,053 | 1,384 |
| Crystal Lake, IA | 264 | 312 | 1,666 | 1,979 |