The density of the population in Quebec is 5,8 inhab / km² (2006). In Montérégie, it is 124,8 hab / km². The population is mostly concentrated in the towns : Longueuil, Chambly , Beloeil …
The MRC of Champlain, that is extended on a small 162,9 km² territory, holds the biggest density : 1295,6 hab / km². Les régions that are less populated are the Upper Saint-Laurent (18,8 inhab / km²) and Acton (26,6 inhab / km²).
