| Statistic | Reportedincidents | /100k people | Colchester/100k people | Connecticut/100k people | National/100k people |
| Total crime | 0 | n/a (estimate) | 1,622 (estimate) | 1,709 | 2,281 |
| Murder | n/a | n/a | n/a | 3.7 | 5.7 |
| Rape | n/a | n/a | n/a | 20.1 | 38.0 |
| Robbery | n/a | n/a | n/a | 43.4 | 66.5 |
| Assault | n/a | n/a | n/a | 83.0 | 264.1 |
| Violent crime | n/a | n/a (estimate) | 142 (estimate) | 150 | 364 |
| Burglary | n/a | n/a | n/a | 127.8 | 250.7 |
| Theft | n/a | n/a | n/a | 1,138.7 | 1,347.2 |
| Vehicle theft | n/a | n/a | n/a | 292.0 | 318.7 |
| Property crime | n/a | n/a (estimate) | 1,480 (estimate) | 1,558 | 1,917 |


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| Item | Colchester | Connecticut | National |
| Law enforcement employees (officers & civilians) | n/a | 5,593 | 558,732 |
| Police officers & civilians /1000 residents | n/a | 2.6 | 3.3 |
| State | Total offenders | Connecticut /100K | National /100K |
| Connecticut | 6,088 | 184 | 266 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Higganum, CT | 1,763 | 37 | 383 | 420 |
| Portland, CT | 5,937 | 53 | 423 | 476 |
| Chester Center, CT | 1,731 | 43 | 444 | 487 |
| South Coventry, CT | 1,413 | 45 | 463 | 508 |
| Moodus, CT | 1,802 | 46 | 476 | 522 |
| Deep River Center, CT | 2,638 | 51 | 530 | 581 |
| Coventry Lake, CT | 2,135 | 52 | 539 | 591 |
| Colchester, CT | 5,147 | 142 | 1,480 | 1,622 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Johnstown, OH | 5,149 | 56 | 282 | 338 |
| Sterling, AK | 5,150 | 368 | 951 | 1,319 |
| Philomath, OR | 5,143 | 51 | 709 | 760 |
| Myrtletown, CA | 5,143 | 408 | 1,870 | 2,279 |
| Granite Shoals, TX | 5,142 | 357 | 1,971 | 2,328 |
| Colchester, CT | 5,147 | 142 | 1,480 | 1,622 |