| Statistic | Reportedincidents | /100k people | Union/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,955 (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) | 308 (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) | 1,646 (estimate) | 1,297 | 1,760 |


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| Item | Union | 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 |
| Grundy Center, IA | 2,671 | 0 | 321 | 321 |
| Conrad, IA | 1,224 | 85 | 452 | 536 |
| Zearing, IA | 547 | 265 | 1,415 | 1,680 |
| Albion, IA | 644 | 286 | 1,524 | 1,810 |
| Beaman, IA | 152 | 288 | 1,535 | 1,823 |
| Hubbard, IA | 771 | 288 | 1,539 | 1,828 |
| Wellsburg, IA | 725 | 289 | 1,542 | 1,831 |
| Union, IA | 412 | 308 | 1,646 | 1,955 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Freeport, OH | 412 | 404 | 2,132 | 2,537 |
| West Alexander, PA | 412 | 285 | 1,665 | 1,950 |
| Betterton, MD | 412 | 520 | 2,539 | 3,059 |
| Jordan, MT | 412 | 513 | 1,958 | 2,471 |
| Lake View, AR | 412 | 844 | 2,814 | 3,658 |
| Union, IA | 412 | 308 | 1,646 | 1,955 |