| Statistic | Reportedincidents | /100k people | Lewis/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,199 (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) | 347 (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) | 1,852 (estimate) | 1,297 | 1,760 |


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| Item | Lewis | 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 |
| Avoca, IA | 1,368 | 83 | 442 | 525 |
| Griswold, IA | 1,179 | 108 | 577 | 685 |
| Wiota, IA | 87 | 222 | 1,183 | 1,405 |
| Walnut, IA | 746 | 271 | 1,445 | 1,716 |
| Hancock, IA | 263 | 287 | 1,530 | 1,816 |
| Marne, IA | 131 | 318 | 1,698 | 2,016 |
| Elliott, IA | 539 | 336 | 1,796 | 2,132 |
| Lewis, IA | 513 | 347 | 1,852 | 2,199 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Cedar Creek, AZ | 513 | 681 | 2,891 | 3,572 |
| Broomes Island, MD | 513 | 170 | 828 | 998 |
| Selby, SD | 513 | 425 | 1,862 | 2,287 |
| East Hodge, LA | 513 | 818 | 3,614 | 4,432 |
| Beaver, OH | 513 | 388 | 2,048 | 2,436 |
| Lewis, IA | 513 | 347 | 1,852 | 2,199 |