| Statistic | Reportedincidents | /100k people | Knierim/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,625 (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) | 256 (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) | 1,368 (estimate) | 1,297 | 1,760 |


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| Item | Knierim | 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 |
| Lake City, IA | 1,751 | 60 | 423 | 484 |
| Manson, IA | 1,760 | 96 | 514 | 611 |
| Twin Lakes, IA | 308 | 98 | 524 | 622 |
| Gowrie, IA | 932 | 108 | 539 | 647 |
| Rockwell City, IA | 2,166 | 134 | 715 | 849 |
| Barnum, IA | 323 | 294 | 1,570 | 1,865 |
| Clare, IA | 144 | 304 | 1,623 | 1,927 |
| Knierim, IA | 57 | 256 | 1,368 | 1,625 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Dennis Acres, MO | 57 | 640 | 2,691 | 3,331 |
| East Brooklyn, IL | 57 | 292 | 1,735 | 2,028 |
| Tintah, MN | 57 | 415 | 2,595 | 3,011 |
| Box Elder, MT | 57 | 623 | 2,375 | 2,998 |
| Terlton, OK | 57 | 527 | 2,466 | 2,994 |
| Knierim, IA | 57 | 256 | 1,368 | 1,625 |