9.6 % growth rate for Gatineau between 2006-2011. That's the second highest for cities in Quebec (after Terrebonne) :
http://www12.statcan.gc.ca/census-re...1&SR=1&S=3&O=D
10 Largest city pops (not metro)
Montreal : 1.8
Quebec: 5.2
Laval : 8.9
Gatineau : 9.6
Longueuil : 0.9
Sherbrooke : 1.9
Saguenay : 0.7
Lévis : 6.7
Trois Rivières : 4.0
Terrebonne : 12.3
Longueuil is surprising.