| Index | Sainte-Marthe-sur-le-Lac | Quebec | National |
| Median household income | $97,537 | $72,311 | $82,436 |
| Unemployment rate | 3.5% | 3.7% | 6.4% |
| In labour force | 72.9% | 64.3% | 63.9% |
| Labour Type | Percent |
| Construction industry | 6.0% |
| Manufacturing sector | 9.2% |
| Financial & insurance services | 4.2% |
| Wholesale & retail services | 11.6% |
| Public administration | 4.1% |
| Transportation, warehousing & utilities | 5.2% |
| Education, health & social services | 13.1% |
| Other | 18.4% |
| City | Population | Household Income | National Avg. |
| Hampstead, QC | 7,502 | $159,032 | 92.9% |
| Baie-D'Urfé, QC | 4,068 | $157,132 | 90.6% |
| Senneville, QC | 1,039 | $150,551 | 82.6% |
| Beaconsfield, QC | 20,868 | $150,471 | 82.5% |
| L'Île-Cadieux, QC | 157 | $150,000 | 82.0% |
| Sainte-Marthe-sur-le-Lac, QC | 20,759 | $97,537 | 18.3% |
| City | Population | Household Income | National Avg. |
| Rocky River, OH | 20,753 | n/a | |
| Ferndale, MI | 20,749 | n/a | |
| Kinston, NC | 20,770 | n/a | |
| West Chester, PA | 20,746 | n/a | |
| Tullahoma, TN | 20,737 | n/a | |
| Sainte-Marthe-sur-le-Lac, QC | 20,759 | $97,537 | 18.3% |