Processed 2021 Census of Population Data for Canada's Aggregate Dissemination Areas (Parquet)

This dataset provides a processed Parquet version of Statistics Canada’s 2021 Census of Population data for the census subdivision geographic level in Canada. It is based on the 2021 Census Profile comprehensive download files published by Statistics Canada, specifically the aggregate dissemination areas (ADA) geography. An ADA is a dissemination geography created for the Census. ADAs cover the entire country and, where possible, have a population between 5,000 and 15,000 based on the previous census population counts. ADAs are created by grouping existing dissemination geographic areas, including census tracts (CTs), census subdivisions (CSDs) or dissemination areas (DAs). ADA boundaries respect provincial, territorial, census division (CD), census metropolitan area (CMA) and census agglomeration (CA) boundaries. The intent of the ADA geography is to ensure the availability of census data, where possible, across all regions of Canada. This release is part of the Data for Canada d4c-datapkg-statistical collection and is intended to support machine-readable, reproducible analysis using modern data tools and workflows.