| Statistic | Reportedincidents | /100k people | Delta/100k people | Iowa/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,344 (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) | 370 (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) | 1,974 (estimate) | 1,297 | 1,760 |


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| Item | Delta | 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 |
| Sigourney, IA | 1,909 | 0 | 0 | 0 |
| Keomah Village, IA | 114 | 201 | 1,073 | 1,275 |
| North English, IA | 957 | 289 | 1,544 | 1,833 |
| Gibson, IA | 30 | 291 | 1,554 | 1,845 |
| Fremont, IA | 804 | 303 | 1,617 | 1,920 |
| Rose Hill, IA | 241 | 314 | 1,676 | 1,990 |
| Hedrick, IA | 652 | 321 | 1,714 | 2,035 |
| Delta, IA | 338 | 370 | 1,974 | 2,344 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| McEwensville, PA | 338 | 272 | 1,589 | 1,861 |
| Blandford, MA | 338 | 351 | 1,240 | 1,592 |
| Tununak, AK | 338 | 1,170 | 2,765 | 3,935 |
| Dexter, MN | 338 | 254 | 1,590 | 1,844 |
| Mooreland, IN | 338 | 436 | 1,922 | 2,359 |
| Delta, IA | 338 | 370 | 1,974 | 2,344 |