Photo: Gaétan Veillette · CC BY-SA 4.011% of households are one-parent families, more than in 86% of Canadian towns
Renter households make up 29%, against 25% across Canada’s towns. There are 2% more residents than in 2016. Children under 15 account for 18%. Compared with other places, residents without Canadian citizenship are scarce here: 2.7%, fewer than in just over two thirds of Canadian towns.
What stands out about the people of Deux-Montagnes
A bilingual town
58% of residents can hold a conversation in both English and French, more than in 94% of Canadian towns; 37% speak French only and 4.3% English only. English & French ↓
Common-law couples
Common-law unions take in 25% of adults, more than in 88% of Canadian towns, while 33% are married. Couples ↓
Written from the data on this page: Statistics Canada, 2021 Census.
More bilingual residents than 94% of Canadian towns: 58%
All figures are the 2021 Census’s unless another date is shown. Knowledge of the two official languages, first languages, and the language of home.
Can hold a conversation in · share of all residents
Mother tongue · share of all residents
Residents whose mother tongue is English: 12% here and 66% across Canada’s towns. The wider picture: 7.5% of residents speak English and French across Canada’s towns. 5.2% most often speak a language other than English or French at home, and 0.4% speak neither official language.
+2% since 2016: slower than 61% of Canadian towns
Two census counts, five years apart, and Statistics Canada’s newest estimate.
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 3%.
Below 60% of Canadian towns: 17% of residents are 65 or over
Age bands of five years, the town’s bars against the typical town’s ticks.
In Deux-Montagnes, just over one in ten residents are aged 15 to 24. With a median age of 42.4, Deux-Montagnes is older than 52% of Canadian towns.
Median age of Canadian towns of 2,500+
■ Deux-Montagnes, 42.4. 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.
Smaller households than 53% of Canadian towns: 2.4 people on average
Households by family type and by the number of people in them.
Against Quebec’s towns and Canada’s towns
People per household
Canada’s towns.
On the census count, 27% of households are one person living alone.
25% of residents 15 and over live common-law, more than in 88% of Canadian towns
Residents 15 and over by marital status; the census counts common-law couples separately.
Marital status · residents 15 and over
In Deux-Montagnes, a third of residents 15 and over are married, beside 46% across Canada’s towns. Across Canada’s towns, the share of common-law partners is 11%.
Households in buildings of five or more storeys make up 1.8% in Deux-Montagnes, more than in 64% of Canadian towns
Occupied homes by type, by owners and renters, and by when they were built. 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
Just over a fifth of homes were built before 1961 and 19% in 2001 or later. Households in single-detached houses make up 59%, against 64% across Canada’s towns.
Median household income: $85,000 a year
Census incomes are for 2020, the year before the census, when CERB and other pandemic benefits topped up many households. What households took in before tax, at the middle and across income groups.
Households by income · share of households
Deux-Montagnes’s median household took in $85,000 before tax, about the median across Canada’s towns ($86,000). Across Quebec’s towns the median is $74,000. Pandemic payments such as CERB reached 30% of income recipients here, against 28% in the typical town.
Residents who moved in within the year: 10%, a lower share than 59% of Canadian towns
Immigrants, newcomers and movers.
Immigrants, by continent of birth · share of all residents; the bar runs to 20%
When immigrants arrived · share of immigrants
Citizenship and moving · share of residents
The largest groups of immigrants were born in Europe (40%) and in Africa (23%). By way of comparison, just over one in ten residents lived at another address a year earlier across Canada’s towns. Across Canada’s towns, 17% of residents are immigrants; in Deux-Montagnes, 13%.
In Deux-Montagnes, 33% of residents said they have no religion, fewer than in 56% of Canadian towns
Identity and faith, in the census’s categories.
Visible minority and Indigenous identity · all residents
Religion · all residents
Other faiths: Muslim (3.7%). 1.9% of residents have an Indigenous identity, a lower share than in 63% of Canadian towns. Across Canada’s towns, 35% of residents said they have no religion. Against a figure of 15% across Canada’s towns, the share of visible minority residents in Deux-Montagnes comes in at 11%.
More degree holders aged 25 to 64 than 52% of Canadian towns: 28%
Education of residents 25 to 64, by highest credential.
Highest qualification · residents 25 to 64
With no certificate, diploma or degree: 9.4%, beside a typical 9.5%. As a yardstick, 27% of residents 25 to 64 hold a bachelor’s degree or higher across Canada’s towns.
64% of residents 15 and over were in work
The census was taken in May 2021, during the pandemic, so these rates show a labour market still recovering. The census’s labour rates, in brief. Jobs, industries and the commute are on Work & commute.
Across Canada’s towns the typical rate is 58%, below this 64%.
14th highest median age among 41 towns of 17,897 to 19,134
Median age of the Canadian towns nearest in population; hover a dot.
The group spans Schmidtville, youngest at 29, to Oak Bay, oldest at 54.4. In age, Deux-Montagnes keeps company with Iberville (41.4), Swift Current (42), O'Connor-Parkview (42.6) and L'Île-Bizard–Sainte-Geneviève (45).
Deux-Montagnes and its 6 nearest towns: 4 of them are older
Neighbouring places and their median ages; each name opens its page.
| Town | People | Away | Median age | 65+ | Immigrants |
|---|---|---|---|---|---|
| Deux-Montagnes | 18,516 | — | 42.4 | 17% | 13% |
| Laval-Ouest | 11,034 | 2.3 km | 42.5 | 15% | 23% |
| Saint-Eustache | 47,562 | 3.1 km | 44.8 | 22% | 10% |
| Sainte-Marthe-sur-le-Lac | 21,949 | 3.5 km | 39.2 | 13% | 13% |
| L'Île-Bizard–Sainte-Geneviève | 18,885 | 5.7 km | 45 | 19% | 28% |
| Fabreville | 48,457 | 6.8 km | 42.8 | 18% | 27% |
| Sainte-Dorothée | 38,183 | 6.9 km | 41.9 | 14% | 31% |
Health, work, housing and schools
What this data can and can’t tell you
- Against Quebec’s towns and Canada’s towns. Provincial and national yardsticks: Quebec’s towns and neighbourhoods of at least 2,500 residents, and all Canadian towns of that size. No whole city and no First Nations reserve is in either median.
- What these tables don’t give. The Census Profile has no unpaid care, cars or internet access, and no change by age since 2016; ethnic origins beyond visible minority and Indigenous identity aren’t charted here.
- The census’s own words. These are self-reported answers: Indigenous identity, immigrant status, religion. The census’s “visible minority” comes from the Employment Equity Act (non-white in colour or race, Indigenous peoples aside), and the page sets each beside other towns without labelling any.
Questions about Deux-Montagnes’s residents
What is the average age in Deux-Montagnes?
42.4 is the median age, older than 52% of Canadian towns. Under 15: 18%. 65 and over: 17%.
Is Deux-Montagnes bilingual?
Across Canada’s towns a typical 7.5% are bilingual; here 58% are. Another 37% speak only French and 4.3% only English, and French is the first language of 74%.
How diverse is Deux-Montagnes?
Immigrants make up 13% of residents, against 17% across Canada’s towns. 11% are members of a visible minority, and 1.9% are First Nations, Métis or Inuit.
What religion are people in Deux-Montagnes?
Christian: 62%. No religion: 33%. Another religion: 5%.
Is Deux-Montagnes good for families?
Across Canada’s towns, a typical 16% of residents are under 15; here, 18%. 54% of households are couple families and 11% one-parent families. Schools near Deux-Montagnes are on its Schools page.
What is the median income in Deux-Montagnes?
$85,000 before tax, in 2020: the middle household’s income in Deux-Montagnes (Canada’s towns: $86,000).
What is the population of Deux-Montagnes?
Statistics Canada estimates 18,516 residents for July 2025; the 2021 Census counted 17,915 in Deux-Montagnes, 2% more than 2016.
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).