| Statistic | Reportedincidents | /100k people | Grafton/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,701 (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) | 268 (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) | 1,432 (estimate) | 1,297 | 1,760 |


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| Item | Grafton | 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 |
| St. Ansgar, IA | 1,144 | 80 | 429 | 509 |
| Nora Springs, IA | 1,648 | 95 | 509 | 605 |
| Manly, IA | 1,480 | 101 | 538 | 639 |
| Northwood, IA | 2,182 | 106 | 564 | 669 |
| Osage, IA | 3,549 | 114 | 628 | 742 |
| Rock Falls, IA | 161 | 265 | 1,416 | 1,682 |
| Rudd, IA | 488 | 292 | 1,557 | 1,849 |
| Grafton, IA | 180 | 268 | 1,432 | 1,701 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Coatsburg, IL | 180 | 388 | 2,303 | 2,691 |
| Holland, MN | 180 | 369 | 2,304 | 2,673 |
| Auburn, IA | 180 | 318 | 1,697 | 2,015 |
| Poneto, IN | 180 | 430 | 1,896 | 2,327 |
| Wimbledon, ND | 180 | 306 | 2,025 | 2,331 |
| Grafton, IA | 180 | 268 | 1,432 | 1,701 |