| Statistic | Reportedincidents | /100k people | Marietta/100k people | Minnesota/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 3,011 (estimate) | 1,863 | 2,119 |
| Murder | n/a | n/a | n/a | 2.9 | 5.0 |
| Rape | n/a | n/a | n/a | 36.8 | 37.5 |
| Robbery | n/a | n/a | n/a | 48.9 | 60.6 |
| Assault | n/a | n/a | n/a | 168.0 | 256.1 |
| Violent crime | n/a | n/a (estimate) | 415 (estimate) | 257 | 359 |
| Burglary | n/a | n/a | n/a | 184.7 | 229.2 |
| Theft | n/a | n/a | n/a | 1,208.5 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 213.1 | 258.8 |
| Property crime | n/a | n/a (estimate) | 2,595 (estimate) | 1,606 | 1,760 |


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| Item | Marietta | Minnesota | National |
| Law enforcement employees (officers & civilians) | n/a | 7,759 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 1.8 | 3.3 |
| State | Total offenders | Minnesota /100K | National /100K |
| Minnesota | 1,283 | 26 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Milbank, SD | 3,137 | 160 | 702 | 863 |
| Madison, MN | 1,647 | 121 | 755 | 876 |
| Louisburg, MN | 27 | 332 | 2,073 | 2,405 |
| La Bolt, SD | 99 | 456 | 1,997 | 2,453 |
| Nassau, MN | 67 | 372 | 2,325 | 2,697 |
| Gary, SD | 284 | 509 | 2,229 | 2,737 |
| Bellingham, MN | 266 | 390 | 2,434 | 2,824 |
| Marietta, MN | 167 | 415 | 2,595 | 3,011 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Sims, IL | 167 | 411 | 2,437 | 2,848 |
| Elk Mountain, WY | 167 | 209 | 1,265 | 1,474 |
| Kirvin, TX | 167 | 558 | 2,925 | 3,483 |
| Burkittsville, MD | 167 | 313 | 1,530 | 1,844 |
| Cloverdale, OH | 167 | 359 | 1,897 | 2,256 |
| Marietta, MN | 167 | 415 | 2,595 | 3,011 |