| Statistic | Reportedincidents | /100k people | Harpers Ferry/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,556 (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) | 246 (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) | 1,310 (estimate) | 1,297 | 1,760 |


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| Item | Harpers Ferry | 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 |
| Lansing, IA | 893 | 105 | 315 | 421 |
| Monona, IA | 1,639 | 87 | 463 | 549 |
| Ferryville, WI | 171 | 229 | 949 | 1,178 |
| Prairie du Chien, WI | 5,605 | 275 | 1,143 | 1,419 |
| McGregor, IA | 837 | 235 | 1,252 | 1,487 |
| Eastman, WI | 397 | 318 | 1,319 | 1,637 |
| Marquette, IA | 448 | 270 | 1,441 | 1,711 |
| Harpers Ferry, IA | 248 | 246 | 1,310 | 1,556 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| San Pierre, IN | 248 | 297 | 1,308 | 1,605 |
| Blanford, IN | 248 | 250 | 1,103 | 1,353 |
| Taylor Landing, TX | 248 | 158 | 827 | 984 |
| Georgetown, MS | 248 | 271 | 1,758 | 2,029 |
| Midvale, ID | 248 | 270 | 859 | 1,129 |
| Harpers Ferry, IA | 248 | 246 | 1,310 | 1,556 |