| Index | Thorold South | Thorold | Ontario |
| Cost of living | 88 | 91 | 111 |
| Goods & Services | 108 | 108 | 107 |
| Groceries | 100 | 100 | 101 |
| Health care | 103 | 103 | 103 |
| Housing | 38 | 50 | 120 |
| Transportation | 107 | 107 | 104 |
| Utilities | 130 | 130 | 119 |
| Cost of living index | |
| Goods & Services index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index |
| State | General Sales Tax | With Max Surtax |
| Ontario | 8% | 13% |
| State | Income Tax (Low) | Income Tax (High) |
| Ontario | 5.05% | 13.16% |
| Item | Thorold | National avg. | Difference |
| Personal Care | $102.00 | $94.33 | 8.1% |
| Recreation | $99.00 | $102.33 | 3.3% |
| Item | Thorold | National avg. | Difference |
| Meat, Poultry and Fish | $99.00 | $102.27 | 3.2% |
| Dairy Products and Eggs | $101.00 | $104.67 | 3.5% |
| Bakery and Cereal Products | $97.00 | $111.67 | 13.1% |
| Fruit and Vegetables | $98.00 | $113.40 | 13.6% |
| Alcoholic Beverages | $102.00 | $105.80 | 3.6% |
| Item | Thorold | National avg. | Difference |
| Doctor | $104.00 | $101.07 | 2.9% |
| Item | Thorold | National avg. | Difference |
| Home Price ($) | $708,000.00 | $659,395.00 | 7.4% |
| Apartment Rent ($) | $n/a | $2,146.00 | 100.0% |
| Item | Thorold | National avg. | Difference |
| Gasoline | $99.00 | $102.07 | 3.0% |
| Item | Thorold | National avg. | Difference |
| All Electricity | $106.00 | $98.60 | 7.5% |
| City | Population | Cost of Living Index | National Avg. |
| Welland, ON | 56,929 | 89 | 11.1% |
| Fort Erie, ON | 32,970 | 90 | 10.0% |
| Niagara Falls, ON | 95,282 | 91 | 8.6% |
| St. Catharines, ON | 140,913 | 91 | 8.6% |
| Wainfleet, ON | 6,177 | 95 | 5.3% |
| Thorold, ON | 21,396 | 91 | 8.7% |
| City | Population | Cost of Living Index | National Avg. |
| Bear, DE | 21,397 | n/a | |
| Ensley, FL | 21,397 | n/a | |
| Saint-Lazare, QC | 21,394 | 81 | 19.3% |
| Duarte, CA | 21,399 | n/a | |
| Cranbrook, BC | 21,392 | 86 | 13.6% |
| Thorold, ON | 21,396 | 91 | 8.7% |