At the 2011 census, Manitoba had a population of 1,208,268, more than half of which is in the Winnipeg Capital Region; Winnipeg is Canada's eighth-largest Census Metropolitan Area, with a population of 730,018 (2011 Census).ccording to the 2006 Canadian census, the largest ethnic group in Manitoba is English (22.9%), followed by German (19.1%), Scottish (18.5%), Ukrainian (14.7%), Irish (13.4%), North American Indian (10.6%), Polish (7.3%), Metis (métis.64), % (french.56), % (dutch.49), % And (russian.40). %