| Index | Montmagny | Quebec | National |
| Median household income | $60,159 | $72,311 | $82,436 |
| Unemployment rate | 2.2% | 3.7% | 6.4% |
| In labour force | 55.0% | 64.3% | 63.9% |
| Labour Type | Percent |
| Construction industry | 3.2% |
| Manufacturing sector | 11.3% |
| Financial & insurance services | 1.7% |
| Wholesale & retail services | 8.8% |
| Public administration | 2.4% |
| Transportation, warehousing & utilities | 2.3% |
| Education, health & social services | 11.2% |
| Other | 13.3% |
| City | Population | Household Income | National Avg. |
| Berthier-sur-Mer, QC | 1,644 | $93,753 | 13.7% |
| Saint-Ferréol-les-Neiges, QC | 3,336 | $85,639 | 3.9% |
| Saint-François-de-l'Île-d'Orléans, QC | 508 | $81,543 | 1.1% |
| Saint-Vallier, QC | 1,032 | $80,000 | 3.0% |
| Saint-Pierre-de-la-Rivière-du-Sud, QC | 880 | $79,099 | 4.0% |
| Montmagny, QC | 10,961 | $60,159 | 27.0% |
| City | Population | Household Income | National Avg. |
| Roscoe, IL | 10,953 | n/a | |
| Jackson, WY | 10,972 | n/a | |
| Memphis, FL | 10,949 | n/a | |
| Forestville, OH | 10,944 | n/a | |
| Muskegon Heights, MI | 10,979 | n/a | |
| Montmagny, QC | 10,961 | $60,159 | 27.0% |