| Index | Saint-Marc-sur-Richelieu | Quebec | National |
| Median household income | $97,550 | $72,311 | $82,436 |
| Unemployment rate | 2.2% | 3.7% | 6.4% |
| In labour force | 70.4% | 64.3% | 63.9% |
| Labour Type | Percent |
| Construction industry | 6.0% |
| Manufacturing sector | 8.8% |
| Financial & insurance services | 2.5% |
| Wholesale & retail services | 10.8% |
| Public administration | 2.8% |
| Transportation, warehousing & utilities | 4.8% |
| Education, health & social services | 8.1% |
| Other | 25.7% |
| City | Population | Household Income | National Avg. |
| Saint-Mathieu-de-Beloeil, QC | 2,671 | $121,211 | 47.0% |
| Saint-Bruno-de-Montarville, QC | 26,923 | $119,940 | 45.5% |
| Boucherville, QC | 42,869 | $115,814 | 40.5% |
| Sainte-Julie, QC | 30,753 | $112,394 | 36.3% |
| Mont-Saint-Hilaire, QC | 19,745 | $111,675 | 35.5% |
| Saint-Marc-sur-Richelieu, QC | 2,239 | $97,550 | 18.3% |
| City | Population | Household Income | National Avg. |
| Madison, NE | 2,239 | n/a | |
| Ossun, LA | 2,238 | n/a | |
| Gibbsboro, NJ | 2,238 | n/a | |
| Clarence, NY | 2,238 | n/a | |
| Oak Hills, PA | 2,238 | n/a | |
| Saint-Marc-sur-Richelieu, QC | 2,239 | $97,550 | 18.3% |