| Statistic | Reportedincidents | /100k people | Quincy/100k people | California/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,175 (estimate) | 2,834 | 2,281 |
| Murder | n/a | n/a | n/a | 5.0 | 5.7 |
| Rape | n/a | n/a | n/a | 36.4 | 38.0 |
| Robbery | n/a | n/a | n/a | 128.3 | 66.5 |
| Assault | n/a | n/a | n/a | 338.6 | 264.1 |
| Violent crime | n/a | n/a (estimate) | 211 (estimate) | 508 | 364 |
| Burglary | n/a | n/a | n/a | 347.4 | 250.7 |
| Theft | n/a | n/a | n/a | 1,466.0 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 512.2 | 318.7 |
| Property crime | n/a | n/a (estimate) | 964 (estimate) | 2,326 | 1,917 |


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| Item | Quincy | California | National |
| Law enforcement employees (officers & civilians) | n/a | 51,506 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 3.6 | 3.3 |
| State | Total offenders | California /100K | National /100K |
| California | 79,891 | 232 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| East Quincy, CA | 2,279 | 234 | 1,074 | 1,308 |
| Meadow Valley, CA | 478 | 499 | 2,285 | 2,784 |
| Cromberg, CA | 312 | 545 | 2,493 | 3,038 |
| Greenville, CA | 785 | 644 | 2,948 | 3,591 |
| Greenhorn, CA | 202 | 722 | 3,307 | 4,030 |
| Quincy, CA | 1,706 | 211 | 964 | 1,175 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Lockport Heights, LA | 1,706 | 156 | 749 | 905 |
| North Belle Vernon, PA | 1,706 | 383 | 821 | 1,204 |
| Erin, TN | 1,706 | 83 | 332 | 415 |
| Katonah, NY | 1,706 | 55 | 252 | 307 |
| Weyauwega, WI | 1,706 | 128 | 540 | 668 |
| Quincy, CA | 1,706 | 211 | 964 | 1,175 |