http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/demo05a-eng.htm
https://en.wikipedia.org/wiki/List_of_the_100_largest_population_centres_in_Canada#By_population_rank
https://en.wikipedia.org/wiki/List_of_the_100_largest_cities_and_towns_in_Canada_by_area
https://en.wikipedia.org/wiki/List_of_census_metropolitan_areas_and_agglomerations_in_Canada#List