A list of 2021 Census custom geography groups included in the custom geographies file package is provided below.

• Brant
• Calgary
• Chilliwack
• Columbia Basin-Boundary (Selkirk)
• Durham
• Frontenac County
• Halton
• Halifax
• Hamilton
• Kawartha Lakes-Haliburton
• Kingston
• Local Immigration Partnership boundaries
• London
• New Brunswick
• New Westminster
• Northern Ontario
• Nova Scotia
• Oakville
• Ottawa
• Parry Sound-Nipissing
• Peel
• Regina
• Simcoe
• Toronto
• Waterloo
• Wellington-Dufferin-Guelph
• Winnipeg
• York Region