Custom Geography Group 1 Durham Erie-St.Clair Hamilton Kingston London Northern Ontario Parry Sound-Nipissing Toronto WDG LHIN sub-regions Custom Geography Group 2 York Custom Geography Group 3 Peel Custom Geography Group 4 Calgary Halton London 2 Red Deer Regina Simcoe Toronto 2 Waterloo Windsor Essex Custom Geography Group 5 Calgary Cape Breton New Brunswick North Bay Parry Sound Public Health Unit Ottawa Sudbury Custom Geography Group 6 Nova Scotia Vancouver Winnipeg Metadata for certain custom geographies is available here. (Note: you must be logged in to access the page)