| Index | Saint-Germain-de-Grantham | Quebec | National | 
| Cost of living | 72 | 82 | 100 | 
| Goods & Services | 84 | 84 | 100 | 
| Groceries | 100 | 100 | 100 | 
| Health care | 102 | 102 | 100 | 
| Housing | 28 | 62 | 100 | 
| Transportation | 100 | 100 | 100 | 
| Utilities | 84 | 84 | 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 | 
| Quebec | 9.975% | 14.975% | 
| State | Income Tax (Low) | Income Tax (High) | 
| Quebec | 15% | 25.75% | 
| Item | Saint-Germain-de-Grantham | National avg. | Difference | 
| Personal Care | $106.00 | $94.33 | 12.4% | 
| Recreation | $98.00 | $102.33 | 4.2% | 
| Item | Saint-Germain-de-Grantham | 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 | Saint-Germain-de-Grantham | National avg. | Difference | 
| Doctor | $98.00 | $101.07 | 3.0% | 
| Item | Saint-Germain-de-Grantham | National avg. | Difference | 
| Home Price ($) | $n/a | $659,395.00 | 100.0% | 
| Apartment Rent ($) | $n/a | $2,146.00 | 100.0% | 
| Item | Saint-Germain-de-Grantham | National avg. | Difference | 
| Gasoline | $104.00 | $102.07 | 1.9% | 
| Item | Saint-Germain-de-Grantham | National avg. | Difference | 
| All Electricity | $98.00 | $98.60 | 0.6% | 
| City | Population | Cost of Living Index | National Avg. | 
| Saint-David, QC | 814 | 69 | 31.3% | 
| Saint-Gérard-Majella, QC | 238 | 69 | 30.9% | 
| Saint-Pie-de-Guire, QC | 446 | 70 | 30.4% | 
| Saint-Marcel-de-Richelieu, QC | 464 | 70 | 30.2% | 
| Saint-Guillaume, QC | 1,444 | 70 | 30.2% | 
| Saint-Germain-de-Grantham, QC | 5,316 | 72 | 28.3% | 
| City | Population | Cost of Living Index | National Avg. | 
| Duncan, BC | 5,315 | 87 | 12.7% | 
| Palmerton, PA | 5,317 | n/a | |
| Tellico Village, TN | 5,314 | n/a | |
| La Habra Heights, CA | 5,318 | n/a | |
| Lee Acres, NM | 5,318 | n/a | |
| Saint-Germain-de-Grantham, QC | 5,316 | 72 | 28.3% |