| Index | Lac-Sergent | Quebec | National |
| Median household income | $99,649 | $72,311 | $82,436 |
| Unemployment rate | 6.2% | 3.7% | 6.4% |
| In labour force | 70.2% | 64.3% | 63.9% |
| Labour Type | Percent |
| Construction industry | 4.4% |
| Manufacturing sector | 3.0% |
| Financial & insurance services | 0.2% |
| Wholesale & retail services | 12.4% |
| Public administration | 14.2% |
| Transportation, warehousing & utilities | 3.4% |
| Education, health & social services | 13.5% |
| Other | 18.6% |
| City | Population | Household Income | National Avg. |
| Saint-Augustin-de-Desmaures, QC | 21,143 | $122,678 | 48.8% |
| Lac-Saint-Joseph, QC | 263 | $114,893 | 39.4% |
| Shannon, QC | 6,530 | $113,616 | 37.8% |
| Saint-Gabriel-de-Valcartier, QC | 3,683 | $106,048 | 28.6% |
| Sainte-Catherine-de-la-Jacques-Cartier, QC | 8,680 | $103,524 | 25.6% |
| Lac-Sergent, QC | 520 | $99,649 | 20.9% |
| City | Population | Household Income | National Avg. |
| Keams Canyon, AZ | 520 | n/a | |
| Jay, FL | 520 | n/a | |
| Seabrook, MA | 520 | n/a | |
| Cement City, MI | 520 | n/a | |
| Green City, MO | 520 | n/a | |
| Lac-Sergent, QC | 520 | $99,649 | 20.9% |