| Index | Mont-Saint-Grégoire | Quebec | National |
| Cost of living | 87 | 88 | 100 |
| Groceries | 109 | 109 | 100 |
| Health care | 102 | 102 | 100 |
| Housing | 71 | 74 | 100 |
| Transportation | 101 | 101 | 100 |
| Utilities | 82 | 82 | 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 |
| Quebec | 9.975% | 14.975% |
| State | Income Tax (Low) | Income Tax (High) |
| Quebec | 15% | 25.75% |
| City | Population | Cost of Living Index | National Avg. |
| Chambly, QC | 30,986 | 85 | 15.2% |
| Bedford, QC | 2,556 | 85 | 15.2% |
| Stanbridge Station, QC | 283 | 85 | 15.2% |
| Saint-Ignace-de-Stanbridge, QC | 725 | 85 | 15.2% |
| Saint-Blaise-sur-Richelieu, QC | 2,223 | 85 | 15.0% |
| Mont-Saint-Grégoire, QC | 3,146 | 87 | 13.0% |
| City | Population | Cost of Living Index | National Avg. |
| Hillsburg-Roblin-Shell River, MB | 3,146 | 100 | 0.1% |
| Kaunakakai, HI | 3,145 | n/a | |
| Wildwood Crest, NJ | 3,145 | n/a | |
| Belchertown, MA | 3,147 | n/a | |
| Brightwaters, NY | 3,144 | n/a | |
| Mont-Saint-Grégoire, QC | 3,146 | 87 | 13.0% |