| Index | South Glengarry | Ontario | National | 
| Cost of living | 76 | 111 | 100 | 
| Goods & Services | 84 | 107 | 100 | 
| Groceries | 100 | 101 | 100 | 
| Health care | 102 | 103 | 100 | 
| Housing | 44 | 120 | 100 | 
| Transportation | 100 | 104 | 100 | 
| Utilities | 84 | 119 | 100 | 
| 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 | South Glengarry | National avg. | Difference | 
| Personal Care | $106.00 | $94.33 | 12.4% | 
| Recreation | $98.00 | $102.33 | 4.2% | 
| Item | South Glengarry | National avg. | Difference | 
| Meat, Poultry and Fish | $100.00 | $102.27 | 2.2% | 
| Dairy Products and Eggs | $102.00 | $104.67 | 2.5% | 
| Bakery and Cereal Products | $103.00 | $111.67 | 7.8% | 
| Fruit and Vegetables | $99.00 | $113.40 | 12.7% | 
| Alcoholic Beverages | $92.00 | $105.80 | 13.0% | 
| Item | South Glengarry | National avg. | Difference | 
| Doctor | $98.00 | $101.07 | 3.0% | 
| Item | South Glengarry | National avg. | Difference | 
| Home Price ($) | $n/a | $659,395.00 | 100.0% | 
| Apartment Rent ($) | $n/a | $2,146.00 | 100.0% | 
| Item | South Glengarry | National avg. | Difference | 
| Gasoline | $104.00 | $102.07 | 1.9% | 
| Item | South Glengarry | National avg. | Difference | 
| All Electricity | $98.00 | $98.60 | 0.6% | 
| City | Population | Cost of Living Index | National Avg. | 
| Cornwall, ON | 47,736 | 81 | 18.8% | 
| Saint-Télesphore, QC | 784 | 72 | 28.1% | 
| Saint-Polycarpe, QC | 2,394 | 72 | 28.0% | 
| Dundee, QC | 367 | 73 | 26.7% | 
| Sainte-Justine-de-Newton, QC | 906 | 73 | 26.6% | 
| South Glengarry, ON | 13,573 | 76 | 23.6% | 
| City | Population | Cost of Living Index | National Avg. | 
| Roselle Park, NJ | 13,574 | n/a | |
| Monroe, GA | 13,568 | n/a | |
| Elizabethton, TN | 13,568 | n/a | |
| Ardmore, PA | 13,567 | n/a | |
| Levelland, TX | 13,566 | n/a | |
| South Glengarry, ON | 13,573 | 76 | 23.6% |