| Index | Quartier Vieux Longueuil/100k people | Longueuil/100k people | Quebec/100k people | National/100k people |
| Total crime | 2,056 (estimate) | 2,228 | 2,478 | 4,223 |
| Violent crime | 697 (estimate) | 756 | 840 | 1,042 |
| Property crime | 1,359 (estimate) | 1,473 | 1,638 | 3,181 |
| Statistic | Longueuil | Quebec | National |
| Total | -7.6% | -7.5% | -7.9% |
| Violent | -11.2% | -0.8% | -3.6% |
| Property | -5.6% | -11.2% | -9.8% |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Hampstead, QC | 7,502 | 204 | 397 | 601 |
| Montréal-Ouest, QC | 5,286 | 223 | 434 | 656 |
| Mont-Royal, QC | 22,238 | 233 | 455 | 688 |
| Westmount, QC | 22,392 | 233 | 455 | 688 |
| Lorraine, QC | 9,148 | 295 | 575 | 870 |
| Candiac, QC | 25,341 | 344 | 670 | 1,013 |
| Rosemère, QC | 15,188 | 344 | 671 | 1,015 |
| Longueuil, QC | 249,920 | 756 | 1,473 | 2,228 |
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people |
| Regina, SK | 241,465 | 1,242 | 4,015 | 5,257 |
| Burnaby, BC | 258,827 | 807 | 3,544 | 4,350 |
| Kitchener, ON | 259,162 | 1,073 | 3,105 | 4,178 |
| Windsor, ON | 230,583 | 1,350 | 3,909 | 5,259 |
| Richmond, BC | 222,489 | 1,028 | 4,513 | 5,540 |
| Longueuil, QC | 249,920 | 756 | 1,473 | 2,228 |