| Index | Niagara-on-the-Lake | Ontario | National |
| Cost of living | 110 | 113 | 100 |
| Groceries | 115 | 110 | 100 |
| Health care | 106 | 104 | 100 |
| Housing | 102 | 123 | 100 |
| Transportation | 105 | 104 | 100 |
| Utilities | 132 | 121 | 100 |
| Lifestyle & Entertainment | n/a | n/a | n/a |
| Household Items | n/a | n/a | n/a |
| Education & Childcare | n/a | n/a | n/a |
| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| State | General Sales Tax | With Max Surtax |
| Ontario | 8% | 13% |
| State | Income Tax (Low) | Income Tax (High) |
| Ontario | 5.05% | 13.16% |
| City | Population | Cost of Living Index | National Avg. |
| Pelham, ON | 18,077 | 108 | 8.3% |
| St. Catharines, ON | 140,913 | 108 | 8.5% |
| Welland, ON | 56,929 | 110 | 9.8% |
| Lincoln, ON | 27,082 | 110 | 9.9% |
| Niagara Falls, ON | 95,282 | 111 | 10.8% |
| Niagara-on-the-Lake, ON | 20,111 | 110 | 9.7% |
| City | Population | Cost of Living Index | National Avg. |
| Five Forks, SC | 20,122 | n/a | |
| Franconia, VA | 20,097 | n/a | |
| Angleton, TX | 20,095 | n/a | |
| Horizon City, TX | 20,136 | n/a | |
| Durango, CO | 20,083 | n/a | |
| Niagara-on-the-Lake, ON | 20,111 | 110 | 9.7% |