| Index | Saint-Guillaume | Quebec | National |
| Median household income | $63,264 | $72,311 | $82,436 |
| Unemployment rate | 3.4% | 3.7% | 6.4% |
| In labour force | 62.3% | 64.3% | 63.9% |
| Labour Type | Percent |
| Construction industry | 3.4% |
| Manufacturing sector | 14.9% |
| Financial & insurance services | 1.9% |
| Wholesale & retail services | 8.5% |
| Public administration | 1.5% |
| Transportation, warehousing & utilities | 5.5% |
| Education, health & social services | 4.4% |
| Other | 20.7% |
| City | Population | Household Income | National Avg. |
| Sainte-Anne-de-Sorel, QC | 2,758 | $93,131 | 13.0% |
| Saint-Majorique-de-Grantham, QC | 1,432 | $90,552 | 9.8% |
| Sainte-Brigitte-des-Saults, QC | 723 | $87,928 | 6.7% |
| La Présentation, QC | 2,541 | $86,058 | 4.4% |
| Wickham, QC | 2,696 | $81,553 | 1.1% |
| Saint-Guillaume, QC | 1,444 | $63,264 | 23.3% |
| City | Population | Household Income | National Avg. |
| Ashaway, RI | 1,444 | n/a | |
| Gregory, SD | 1,444 | n/a | |
| Sainte-Élisabeth, QC | 1,444 | $71,282 | 13.5% |
| Bulkley-Nechako D, BC | 1,444 | $84,737 | 2.8% |
| Fyffe, AL | 1,445 | n/a | |
| Saint-Guillaume, QC | 1,444 | $63,264 | 23.3% |