| Index | Lac-Sergent | Quebec | National |
| Cost of living | 87 | 88 | 100 |
| Groceries | 109 | 109 | 100 |
| Health care | 102 | 102 | 100 |
| Housing | 70 | 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. |
| Saint-Antoine-de-Tilly, QC | 1,619 | 85 | 15.2% |
| Pont-Rouge, QC | 9,651 | 85 | 15.2% |
| Saint-Augustin-de-Desmaures, QC | 21,143 | 85 | 15.2% |
| Saint-Gabriel-de-Valcartier, QC | 3,683 | 85 | 15.2% |
| Saint-Marc-des-Carrières, QC | 2,933 | 85 | 15.2% |
| Lac-Sergent, QC | 520 | 87 | 13.5% |
| City | Population | Cost of Living Index | National Avg. |
| Spring Lake, FL | 520 | n/a | |
| Irwinton, GA | 520 | n/a | |
| Sumner, GA | 520 | n/a | |
| Stacyville, IA | 520 | n/a | |
| Leaf River, IL | 520 | n/a | |
| Lac-Sergent, QC | 520 | 87 | 13.5% |