| Name | Longueuil |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 122,900,000 |
| Date founded | 1657 |
| Elevation (m) | 15 |
| Country | Canada |
| Administrative division | Quebec |
| Continent | Americas |
| Latitude (°) | 45.5333328247 |
| Waterbody | |
| Longitude (°) | -73.5166702271 |
| Website | http://www.longueuil.ca |
| Population (people) | 249,338 (2020) |
| Demonym |