| Statistic | Reportedincidents | /100k people | Chapin/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,926 (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) | 304 (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) | 1,622 (estimate) | 1,297 | 1,760 |


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| Item | Chapin | 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 |
| Hampton, IA | 4,332 | 94 | 517 | 611 |
| Sheffield, IA | 1,096 | 99 | 531 | 630 |
| Rockwell, IA | 890 | 258 | 1,377 | 1,635 |
| Rockford, IA | 860 | 268 | 1,429 | 1,696 |
| Thornton, IA | 486 | 292 | 1,561 | 1,853 |
| Swaledale, IA | 136 | 307 | 1,641 | 1,949 |
| Geneva, IA | 136 | 323 | 1,726 | 2,049 |
| Chapin, IA | 168 | 304 | 1,622 | 1,926 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Dell City, TX | 168 | 619 | 3,247 | 3,867 |
| Bowdon, ND | 168 | 390 | 2,580 | 2,969 |
| Palermo, ND | 168 | 329 | 2,182 | 2,511 |
| Valentine, TX | 168 | 546 | 2,865 | 3,411 |
| Lexa, AR | 168 | 657 | 2,189 | 2,845 |
| Chapin, IA | 168 | 304 | 1,622 | 1,926 |