| Index | L'Islet | Quebec | National |
| Median household income | $64,674 | $72,311 | $82,436 |
| Unemployment rate | 2.9% | 3.7% | 6.4% |
| In labour force | 60.5% | 64.3% | 63.9% |
| Labour Type | Percent |
| Construction industry | 3.0% |
| Manufacturing sector | 15.9% |
| Financial & insurance services | 1.2% |
| Wholesale & retail services | 6.3% |
| Public administration | 1.4% |
| Transportation, warehousing & utilities | 2.2% |
| Education, health & social services | 11.9% |
| Other | 17.0% |
| City | Population | Household Income | National Avg. |
| Petite-Rivière-Saint-François, QC | 857 | $83,175 | 0.9% |
| Saint-Pierre-de-la-Rivière-du-Sud, QC | 880 | $79,099 | 4.0% |
| Saint-Aubert, QC | 1,502 | $68,030 | 17.5% |
| Cap-Saint-Ignace, QC | 3,066 | $66,964 | 18.8% |
| Saint-Damase-de-L'Islet, QC | 529 | $63,962 | 22.4% |
| L'Islet, QC | 3,712 | $64,674 | 21.5% |
| City | Population | Household Income | National Avg. |
| Hudson, NC | 3,713 | n/a | |
| Fairview, NJ | 3,713 | n/a | |
| Shingle Springs, CA | 3,710 | n/a | |
| North El Monte, CA | 3,709 | n/a | |
| Franklinton, LA | 3,709 | n/a | |
| L'Islet, QC | 3,712 | $64,674 | 21.5% |