Dictionary, Census of Population, 2021
Economic family after-tax income decile group

Release date: November 17, 2021Updated on: July 13, 2022


The economic family income decile group provides a rough ranking of the economic situation of a person based on his or her relative position in the Canadian distribution of the adjusted after-tax income of economic families for all persons in private households.

Using data from the 2021 Census of Population, the population in private households is sorted according to its adjusted after-tax family income and then divided into 10 equal groups each containing 10% of the population. The decile cut-points are the levels of adjusted after-tax family income that defined the 10 groups.

For the 2021 Census, the reference period for income data is the calendar year 2020, unless otherwise specified.

Statistical unit(s)


Reported in

2021 and 2016 (100% data); and 2011Footnote 1 (30% sample).

Reported for

Population in private households

Question number(s)

Variable derived based on administrative tax and benefit records received from the Canada Revenue Agency.


In the lowest decile
In the second decile
In the third decile
In the fourth decile
In the fifth decile
In the sixth decile
In the seventh decile
In the eighth decile
In the ninth decile
In the highest decile


See adjusted after-tax income.

For additional information about data collection method, coverage, reference period, concepts, data quality and intercensal comparability of the income data, refer to the Income Reference Guide, Census of Population, 2021.


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