| Index | Niagara-on-the-Lake/100k people | Ontario/100k people | National/100k people | 
| Total crime | 1,985 (estimate) | 3,086 | 4,223 | 
| Violent crime | 509 (estimate) | 792 | 1,042 | 
| Property crime | 1,475 (estimate) | 2,294 | 3,181 | 
| Statistic | Niagara-on-the-Lake | Ontario | National | 
| Total incidents | n/a | 595,868 | 2,225,600 | 
| Incidents per 100k | n/a | 4,044 | 5,856 | 
| Change in 100k rate | n/a | -11.0% | -9.8% | 
| Statistic | Niagara-on-the-Lake | Ontario | National | 
| All (12+ years) | n/a | 1,399 | 1,709 | 
| Youths (12-17) | n/a | 837 | 1,108 | 
| Adults (18+) | n/a | 1,444 | 1,757 | 
| Statistic | Niagara-on-the-Lake | Ontario | National | 
| Clearance rate | n/a | 40 | 37 | 
| Clearance rate change | n/a | 0.2% | 0.2% | 
| Clearance rate violent | n/a | 61 | 58 | 
| Clearance rate property | n/a | 30 | 27 | 
| Statistic | Niagara-on-the-Lake | Ontario | National | 
| Total | n/a | -8.7% | -7.9% | 
| Violent | n/a | -7.9% | -3.6% | 
| Property | n/a | -9.1% | -9.8% | 
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people | 
| Pelham, ON | 18,077 | 554 | 1,605 | 2,160 | 
| Lincoln, ON | 27,082 | 643 | 1,863 | 2,506 | 
| Thorold, ON | 21,396 | 728 | 2,110 | 2,838 | 
| St. Catharines, ON | 140,913 | 822 | 2,381 | 3,204 | 
| Niagara Falls, ON | 95,282 | 911 | 2,639 | 3,550 | 
| Welland, ON | 56,929 | 963 | 2,788 | 3,750 | 
| Niagara-on-the-Lake, ON | 20,111 | 509 | 1,475 | 1,985 | 
| City | Population | Violent crime/100k people | Property crime/100k people | Total crime/100k people | 
| Kirkland, QC | 20,189 | 233 | 455 | 688 | 
| Rivière-du-Loup, QC | 20,207 | 607 | 1,184 | 1,792 | 
| Camrose, AB | 19,951 | 1,174 | 4,917 | 6,091 | 
| Colchester, Subd. B, NS | 19,895 | 1,099 | 2,708 | 3,807 | 
| Colwood, BC | 19,837 | 696 | 3,057 | 3,753 | 
| Niagara-on-the-Lake, ON | 20,111 | 509 | 1,475 | 1,985 |