[7] About 900 supervisors and 31,000 field enumerators were hired to conduct the door-to-door survey of individuals and households who had not completed the census questionnaire by late May or early June.

[1] Canvassing agents wore masks and maintained a physical distance to comply with COVID-19 safety regulations.

[10] The questionnaire questions were available in a number of languages (Arabic, simplified and traditional Chinese, Italian, Korean, Persian, Portuguese, Punjabi, Russian, Spanish, Urdu, and Vietnamese) and indigenous languages (Atikamekw, Denesuline, Nunavik and Nunavut Inuktitut, Mohawk, Montagnais, Naskapi, Northern Quebec Cree, Ojibwe, Oji-Cree, Plains Cree, Swampy Cree, and Tłı̨chǫ), but the questionnaire had to be completed in either English or French.

[9] Those who completed the census questionnaire online could listen to a number of soundtracks on Spotify and YouTube prepared by Statistics Canada.

[9] It must be completed by citizens of Canada, permanent residents, refugee claimants, and those with a study or work permit.

[13] The 2021 Canadian census included new questions "critical to measuring equity, diversity and inclusivity".

Canada has been noted in this instance to be the first country to provide census data on transgender and non-binary people.