| Index | Saint-Constant | Quebec | National |
| Cost of living | 76 | 82 | 100 |
| Goods & Services | 84 | 84 | 100 |
| Groceries | 100 | 100 | 100 |
| Health care | 102 | 102 | 100 |
| Housing | 41 | 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-Constant | National avg. | Difference |
| Personal Care | $106.00 | $94.33 | 12.4% |
| Recreation | $98.00 | $102.33 | 4.2% |
| Item | Saint-Constant | 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-Constant | National avg. | Difference |
| Doctor | $98.00 | $101.07 | 3.0% |
| Item | Saint-Constant | National avg. | Difference |
| Home Price ($) | $n/a | $659,395.00 | 100.0% |
| Apartment Rent ($) | $n/a | $2,146.00 | 100.0% |
| Item | Saint-Constant | National avg. | Difference |
| Gasoline | $104.00 | $102.07 | 1.9% |
| Item | Saint-Constant | National avg. | Difference |
| All Electricity | $98.00 | $98.60 | 0.6% |
| City | Population | Cost of Living Index | National Avg. |
| Saint-Valentin, QC | 447 | 71 | 28.5% |
| Howick, QC | 907 | 72 | 28.4% |
| Saint-Patrice-de-Sherrington, QC | 2,056 | 73 | 27.4% |
| Beauharnois, QC | 14,056 | 73 | 27.2% |
| Saint-Jacques-le-Mineur, QC | 1,801 | 73 | 27.1% |
| Saint-Constant, QC | 31,461 | 76 | 24.5% |
| City | Population | Cost of Living Index | National Avg. |
| El Paso de Robles (Paso Robles), CA | 31,480 | n/a | |
| Aiken, SC | 31,428 | n/a | |
| Fairbanks, AK | 31,427 | n/a | |
| Midlothian, TX | 31,533 | n/a | |
| Franklin Square, NY | 31,537 | n/a | |
| Saint-Constant, QC | 31,461 | 76 | 24.5% |