| Statistic | Reportedincidents | /100k people | Knierim/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,816 (estimate) | 1,721 | 2,281 |
| Murder | n/a | n/a | n/a | 2.5 | 5.7 |
| Rape | n/a | n/a | n/a | 41.3 | 38.0 |
| Robbery | n/a | n/a | n/a | 22.3 | 66.5 |
| Assault | n/a | n/a | n/a | 213.9 | 264.1 |
| Violent crime | n/a | n/a (estimate) | 295 (estimate) | 280 | 364 |
| Burglary | n/a | n/a | n/a | 218.6 | 250.7 |
| Theft | n/a | n/a | n/a | 1,056.8 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 165.2 | 318.7 |
| Property crime | n/a | n/a (estimate) | 1,520 (estimate) | 1,441 | 1,917 |


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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 |
| Gowrie, IA | 932 | 0 | 0 | 0 |
| Manson, IA | 1,760 | 111 | 572 | 683 |
| Twin Lakes, IA | 308 | 113 | 582 | 695 |
| Rockwell City, IA | 2,166 | 154 | 795 | 949 |
| Lake City, IA | 1,751 | 301 | 1,083 | 1,384 |
| Barnum, IA | 323 | 339 | 1,745 | 2,084 |
| Clare, IA | 144 | 350 | 1,804 | 2,154 |
| Knierim, IA | 57 | 295 | 1,520 | 1,816 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Plato, MO | 57 | 524 | 2,393 | 2,918 |
| Amagon, AR | 57 | 957 | 3,442 | 4,399 |
| New Bedford, IL | 57 | 452 | 2,505 | 2,957 |
| Terlton, OK | 57 | 516 | 2,678 | 3,195 |
| Dennis Acres, MO | 57 | 636 | 2,904 | 3,541 |
| Knierim, IA | 57 | 295 | 1,520 | 1,816 |