| Event Category | Disaster |
| Event Group | Natural |
| Event Subgroup | Meteorological - Hydrological |
| Event Type | Flood |
| Place | Saint-Jean QC |
| Event Start Date | May 1, 1971 |
| Event End Date | May 1, 1971 |
| Comments | Saint-Jean QC, May 1971. The Richelieu River overflowed to cover the surrounding area up to 72 kilometres in distance, reaching a height of 2.44 m of water; 65% of the damage costs were directed to the rural sector; basements in Saint-Jean were flooded. |
| Fatalities | 0 |
| Injured / Infected | 0 |
| Evacuated | 0 |
| Estimated Total Cost | Unknown |
| Federal DFAA Payments | $0 |
| Provincial DFAA Payments | $0 |
| Provincial Department Payments | Unknown |
| Municipal Costs | Unknown |
| OGD Costs | Unknown |
| Insurance Payments | Unknown |
| NGO Payments | Unknown |
| Utility - People Affected | 0 |
| Magnitude | 0.0 |