| Statistic | Reportedincidents | /100k people | Chelsea/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,480 (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) | 391 (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) | 2,089 (estimate) | 1,297 | 1,760 |


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| Item | Chelsea | 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 |
| Holiday Lake, IA | 330 | 98 | 524 | 622 |
| Brooklyn, IA | 1,677 | 99 | 528 | 627 |
| Toledo, IA | 2,185 | 118 | 631 | 749 |
| Tama, IA | 2,757 | 125 | 665 | 789 |
| Luzerne, IA | 125 | 240 | 1,282 | 1,522 |
| Keystone, IA | 605 | 282 | 1,506 | 1,788 |
| Malcom, IA | 275 | 291 | 1,555 | 1,846 |
| Chelsea, IA | 259 | 391 | 2,089 | 2,480 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Munich, ND | 259 | 325 | 2,155 | 2,481 |
| Bovill, ID | 259 | 332 | 1,058 | 1,390 |
| St. Petersburg, PA | 259 | 334 | 1,948 | 2,282 |
| Verona, IL | 259 | 381 | 2,264 | 2,645 |
| Roaring Springs, TX | 259 | 560 | 2,936 | 3,495 |
| Chelsea, IA | 259 | 391 | 2,089 | 2,480 |