| Statistic | Reportedincidents | /100k people | Mason City/100k people | Nebraska/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 2,422 (estimate) | 1,847 | 2,119 |
| Murder | n/a | n/a | n/a | 2.1 | 5.0 |
| Rape | n/a | n/a | n/a | 43.5 | 37.5 |
| Robbery | n/a | n/a | n/a | 20.5 | 60.6 |
| Assault | n/a | n/a | n/a | 154.5 | 256.1 |
| Violent crime | n/a | n/a (estimate) | 288 (estimate) | 221 | 359 |
| Burglary | n/a | n/a | n/a | 155.1 | 229.2 |
| Theft | n/a | n/a | n/a | 1,218.9 | 1,272.1 |
| Vehicle theft | n/a | n/a | n/a | 252.6 | 258.8 |
| Property crime | n/a | n/a (estimate) | 2,133 (estimate) | 1,627 | 1,760 |


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| Item | Mason City | Nebraska | National |
| Law enforcement employees (officers & civilians) | n/a | 2,523 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 2.1 | 3.3 |
| State | Total offenders | Nebraska /100K | National /100K |
| Nebraska | 6,070 | 345 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Arcadia, NE | 364 | 249 | 1,844 | 2,093 |
| Hazard, NE | 45 | 251 | 1,859 | 2,111 |
| Ansley, NE | 568 | 283 | 2,093 | 2,376 |
| Litchfield, NE | 306 | 297 | 2,193 | 2,490 |
| Berwyn, NE | 95 | 312 | 2,308 | 2,620 |
| Mason City, NE | 163 | 288 | 2,133 | 2,422 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Ashville, PA | 163 | 283 | 1,648 | 1,931 |
| Aquilla, TX | 163 | 584 | 3,064 | 3,649 |
| Barnesville, MD | 163 | 170 | 828 | 998 |
| Westby, MT | 163 | 494 | 1,885 | 2,379 |
| Julian, PA | 163 | 279 | 1,628 | 1,907 |
| Mason City, NE | 163 | 288 | 2,133 | 2,422 |