Dictionary, Census of Population, 2021

Release date: November 17, 2021Updated on: June 21, 2023

Note: The PDF format will be available at a later date.


The Census Dictionary is a reference document which contains detailed definitions of Census of Population concepts, variables and geographic terms, as well as historical information.

By referring to the Census Dictionary, both beginner and intermediate data users will gain a better understanding of the data and how to compare variables between census years.

Related census links

Reference guides

Definitions and explanations of census concepts as well as a data quality and historical comparability.

Symbols, abbreviations and acronyms

Table symbols and a list of abbreviations and acronyms found withing various census products.

Geography: Attribute domain values

A list of the different coded values that can be found in various dissemination products, along with their corresponding descriptions.


2021 Census of Population questionnaires.

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