General documentation
- Instructions to commissioners and enumerators (Internet Archive)
- Schedule (CCRI project website)
Data files
- Selected aggregated tables for census subdivisions and census divisions were created by the Canadian Century Research Infrastructure (CCRI), available in odesi.
- Microdata is available through the CCRI website
- Searchable database of census returns available on the Library and Archives Canada website (only scanned images can be downloaded)
Geospatial Files
- Census Divisions and Subdivisions are available openly on Scholars Geoportal
Published statistics
- Table of contents of all census volumes
- Sixth Census of Canada, 1921, vol. I (Publications Canada)
- Sixth Census of Canada, 1921, vol. II (Internet Archive)
- Sixth Census of Canada, 1921, vol. III (Internet Archive)
- Sixth Census of Canada, 1921, vol. IV (Internet Archive)
- Sixth Census of Canada, 1921, vol. V (Internet Archive)
- Bulletins I-XXI (Internet Archive)
- Monographs:
- Nationality, birthplace, and racial origin of Canadians as recorded in the census (Internet Archive)
- Origin, birthplace, nationality and language of the Canadian people (Internet Archive)
- Children in gainful occupations (Internet Archive)
- Analphabétisme et fréquentation scolaire au Canada : commentaires sur le recensement de 1921 et données supplémentaires (French only) (Internet Archive)
Reference maps
- Divisions of Prairie Provinces for Census Purposes (fold out maps within Vol. I) (Publications Canada)
- Electoral district boundaries are in Electoral Atlas of the Dominion of Canada according to the Redistribution Act of 1914 and the amending Act of 1915 (Library and Archives Canada)