According to the 2006 census there 98,090 Canadians of full or partial Czech descent, but also 36,970 Canadians identified their origin as Czechoslovakian. Those same numbers for Ontario are 39,840 Czech and 12,595 Czechoslovakian and for Toronto 16,290 Czech and 4,135 Czechoslovakian.
Primary Areas of Settlement in the GTA:Oakville, Milton, Caledon, King, Newmarket, Aurora, Whitchurch-Stoufville, City of Toronto
The Canadian Encyclopedia:
The Encyclopedia of Canada’ s Peoples