| Statistic | Reportedincidents | /100k people | Barnum/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,865 (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) | 294 (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) | 1,570 (estimate) | 1,297 | 1,760 |


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| Item | Barnum | 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 |
| Manson, IA | 1,760 | 96 | 514 | 611 |
| Rockwell City, IA | 2,166 | 134 | 715 | 849 |
| Humboldt, IA | 4,568 | 158 | 845 | 1,003 |
| Badger, IA | 448 | 252 | 1,346 | 1,598 |
| Knierim, IA | 57 | 256 | 1,368 | 1,625 |
| Coalville, IA | 645 | 271 | 1,446 | 1,717 |
| Otho, IA | 479 | 296 | 1,578 | 1,873 |
| Barnum, IA | 323 | 294 | 1,570 | 1,865 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Streetman, TX | 323 | 551 | 2,891 | 3,443 |
| Patrick, SC | 323 | 646 | 2,904 | 3,550 |
| Brisbin, PA | 323 | 314 | 1,830 | 2,143 |
| Medora, IL | 323 | 395 | 2,343 | 2,737 |
| East New Market, MD | 323 | 543 | 2,651 | 3,194 |
| Barnum, IA | 323 | 294 | 1,570 | 1,865 |