Photo: Pymouss · CC BY-SA 4.0A higher share of one-parent families than 83% of Canadian towns, at 11%
Compared with 35% across Canada’s towns, just over a quarter of residents said they have no religion here. Here, 18% of residents are under 15. Half of Châteauguay’s residents are over 42.8, older than in 54% of Canadian towns. Statistics Canada puts the town’s population at 53,508 for July 2025.
What stands out about the people of Châteauguay
A bilingual town
Both official languages: 58% of residents speak English and French, more than in 94% of Canadian towns. Another 29% speak only French and 12% only English. English & French ↓
Written from the data on this page: Statistics Canada, 2021 Census.
58% of residents speak English and French, more than in 94% of Canadian towns
Every figure here comes from the 2021 Census unless it carries another date. Who can speak English and French, mother tongue, and the language spoken most at home.
Can hold a conversation in · share of all residents
Mother tongue · share of all residents
At home, 9.2% mostly speak another language; 0.8% speak neither English nor French. The usual figure: 7.5% of residents speak English and French across Canada’s towns. Residents whose mother tongue is English are rarer here than in four fifths of Canadian towns.
Châteauguay grew +6% from 2016 to 2021, faster than 63% of Canadian towns
How the population moved between the last two censuses, and since.
Change, 2016 to 2021
Across Quebec’s towns the median is +4%, and across Canada’s towns +4%. By July 2025, the estimate had risen a further 5%.
Châteauguay ranks above 56% of Canadian towns on residents aged 65 and over: 20%
Every five-year age group as a share of residents; ticks mark the typical town.
More residents are 55–59 than any other five-year age: 7.3% of residents. To put it in context, 19% of residents are 65 or over across Canada’s towns. Châteauguay sits close to the norm on residents aged 15 to 24: 11%, about the same as across Canada’s towns.
Median age of Canadian towns of 2,500+
■ Châteauguay, 42.8. The typical town is 42.
Broad ages · share of residents
Women and men · all residents
51% women, 49% men
About 96 men for every 100 women.
Bigger households than 58% of Canadian towns: 2.5 people each on average
Who shares a home: household types and sizes.
Against Quebec’s towns and Canada’s towns
People per household
Canada’s towns.
Here, 28% of households are one person living alone.
Châteauguay ranks above 82% of Canadian towns on common-law partners: 18%
How adults live as couples, or don’t, with common-law unions shown on their own.
Marital status · residents 15 and over
Set against 46% across Canada’s towns, 39% of residents 15 and over are married in Châteauguay. The comparison figure for common-law partners is 11% across Canada’s towns.
More renter households than 55% of Canadian towns: 28%
The kinds of homes people live in, who owns and who rents, and how old the homes are. Prices, rents and shelter costs are on Cost of living.
Type of home
Owners and renters · share of households
When homes were built · share of homes
24% of homes were built in 2001 or later, more than the 18% built before 1961. Typically, 25% of households rent their home across Canada’s towns. Households in buildings of five or more storeys are about as common here as across Canada’s towns, at 0.4%.
A median household income of $79,000 a year
The census asked about income in 2020: a pandemic year, with CERB and other emergency benefits counted in. What households took in before tax, at the middle and across income groups.
Households by income · share of households
Châteauguay’s median household took in $79,000 before tax, 8% less than the median across Canada’s towns ($86,000). $74,000 is the median household income across Quebec’s towns. Emergency and recovery benefits reached 29% of those with an income, beside a typical 28%.
More immigrants than 57% of Canadian towns: 21%
Birthplaces and arrival years of immigrants, citizenship and recent moves.
Immigrants, by continent of birth · share of all residents; the bar runs to 25%
When immigrants arrived · share of immigrants
Citizenship and moving · share of residents
Of the immigrants living here, 29% came between 2011 and 2021; across Canada’s towns the share is 27%. Across Canada’s towns, immigrants come to 17%. Immigrants here were most often born in Africa (31%), then in Europe (28%). Residents who moved in within the year are rarer here than in 62% of Canadian towns.
Above 60% of Canadian towns: 23% of residents belong to a visible minority
Residents’ own answers on visible minority, Indigenous identity and religion.
Visible minority and Indigenous identity · all residents
Religion · all residents
Among other religions: Muslim (6.5%). Across Canada’s towns, 15% of residents belong to a visible minority. Châteauguay sits close to the norm on Indigenous residents: 2.7%, about the same as across Canada’s towns.
Degree holders aged 25 to 64 make up 22% in Châteauguay, less than in 63% of Canadian towns
The highest diploma or degree of adults of working age (25 to 64).
Highest qualification · residents 25 to 64
Some 12% have no certificate, diploma or degree, against a typical 9.5%. Against that, 27% of residents 25 to 64 hold a bachelor’s degree or higher across Canada’s towns.
58% of adults were employed in May 2021
These rates date from May 2021, during the pandemic, and run lower than a normal year’s. Four labour figures from the census. Jobs, industries and the commute are on Work & commute.
Across Canada’s towns the typical rate is 58%, much like this 58%.
Oldest by rank: 20th of 41 towns of 45,565 to 62,914 people
Towns of about this size, placed by median age.
Median ages climb from 34.9 (Whalley) to 54.4 (Shawinigan) across the group. The towns whose median age is nearest to Châteauguay’s: Fabreville (42.8), Lakeshore (42.8), Caledonia (43.6) and Dollard-Des Ormeaux (43.6).
Nearby, 3 of 5 towns have older populations than Châteauguay
Places nearby, shaded by median age, each linked to its page.
| Town | People | Away | Median age | 65+ | Immigrants |
|---|---|---|---|---|---|
| Châteauguay | 53,508 | — | 42.8 | 20% | 21% |
| Kahnawake | 11,142 | 4.5 km | — | — | — |
| Mercier | 16,036 | 5.1 km | 39.2 | 14% | 12% |
| Léry | 2,817 | 5.6 km | 46 | 22% | 7.5% |
| Lachine-Ouest | 15,315 | 9.3 km | 45.5 | 22% | 21% |
| Dorval | 21,062 | 9.4 km | 45.2 | 21% | 27% |
| Saint-Isidore | 2,889 | 9.6 km | 40.4 | 17% | 3% |
Health, work, housing and schools
What this data can and can’t tell you
- The census’s own words. “Visible minority” is the census’s term from the Employment Equity Act: people, other than Indigenous peoples, who are non-white in colour or race. Indigenous identity, immigrant status and religion are as residents answered. The page compares them with other towns and never labels a town by them.
- Against Quebec’s towns and Canada’s towns. Two medians frame each figure: one for Quebec’s towns and neighbourhoods of 2,500 or more, one for all Canadian towns of that size, with whole cities and First Nations reserves left out. Percentiles rank the town within Canada.
- What these tables don’t give. For origins the charts stop at visible minority and Indigenous identity, and the Census Profile has nothing on unpaid care, cars or the internet, or on change by age since 2016.
Questions about Châteauguay’s residents
How diverse is Châteauguay?
Across Canada’s towns a typical 17% are immigrants; here, 21%. A visible minority makes up 23% and Indigenous residents 2.7%.
What religion are people in Châteauguay?
Most often Christian (66%) or no religion (26%); other religions make up 8.1%.
Is Châteauguay good for families?
Children under 15 are 18% of residents, against 16% across Canada’s towns. Couple families make up 53% of households and one-parent families 11%. Schools near Châteauguay are on its Schools page.
What is the median income in Châteauguay?
Median total household income in Châteauguay was $79,000 in 2020, against a median of $86,000 across Canada’s towns.
What is the population of Châteauguay?
The latest figure is an estimate: 53,508 residents in July 2025. At the 2021 Census, Châteauguay counted 50,815, 6% more than 2016.
What is the average age in Châteauguay?
Half the residents are older than 42.8 and half younger, older than 54% of Canadian towns; 18% are children under 15 and 20% are 65 or over.
Is Châteauguay bilingual?
58% of residents can speak both English and French (typical across Canada’s towns: 7.5%); 29% speak French only and 12% English only. French is the mother tongue of 53%.
Sources: Statistics Canada, Census Profile, 2021 Census of Population · Statistics Canada, population estimates for 1 July 2025 (table 17-10-0155). Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).