Photo: Khayman · CC BY-SA 3.0Sainte-Thérèse sits above 92% of Canadian towns for one-person households (42%)
Half of Sainte-Thérèse’s residents are over 47.6, older than in 79% of Canadian towns. The town is home to some 27,253 people (July 2025 estimate), in 12,685 households at the 2021 Census. The census found that just over one in ten residents are under 15 in the town. With households in buildings of five or more storeys at 6.6%, Sainte-Thérèse is ahead of three quarters of Canadian towns on that count.
What stands out about the people of Sainte-Thérèse
A bilingual town
53% of residents can hold a conversation in both English and French, more than in 92% of Canadian towns; 45% speak French only and 0.9% English only. English & French ↓
Many people living alone
One-person households make up 42%, more than in 92% of Canadian towns, and 27% of residents are 65 or over. Households ↓
Many older residents
27% of residents are 65 or over, more than in 85% of Canadian towns; 8.6% are 80 or over, and 42% of households are one person living alone. Ages ↓
A town of renters
54% of households rent their home, more than in 88% of Canadian towns; 67% live in an apartment. Homes ↓
Written from the data on this page: Statistics Canada, 2021 Census.
Sainte-Thérèse: 53% of residents speak English and French, above 92% of Canadian towns
The 2021 Census is the source of every figure here unless a date says otherwise. 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
At home: French 90%, English 4%. Set beside that, 7.5% of residents speak English and French across Canada’s towns. On residents whose mother tongue is English, Sainte-Thérèse sits lower than 89% of Canadian towns: 3.2%.
Slower growth than 63% of Canadian towns: Sainte-Thérèse changed by +2% since 2016
The census counts of 2016 and 2021, the estimate after them, and the change set beside other towns.
Change, 2016 to 2021
The July 2025 estimate adds another 3%. For comparison, the median is +4% across Canada’s towns and +4% across Quebec’s towns.
Residents aged 65 and over: 27%, a higher share than 85% of Canadian towns
Age bands of five years, the town’s bars against the typical town’s ticks.
The biggest five-year age group is 25–29, with 7.4% of residents, 1.3 times the share across Canada’s towns. Set beside that, 19% of residents are 65 or over across Canada’s towns. The share of residents aged 15 to 24 stands at 9.7%.
Median age of Canadian towns of 2,500+
■ Sainte-Thérèse, 47.6. The typical town is 42.
Broad ages · share of residents
Women and men · all residents
53% women, 47% men
About 90 men for every 100 women. Women live longer than men, so towns with many older residents have more women.
2 people per household, fewer than in 90% of Canadian towns
Household types, then household sizes.
Against Quebec’s towns and Canada’s towns
People per household
Canada’s towns.
In Sainte-Thérèse, 10% of households are one-parent families, beside 8.2% across Canada’s towns.
A smaller share of married residents 15 and over than 96% of Canadian towns: 25%
Residents 15 and over by marital status; the census counts common-law couples separately.
Marital status · residents 15 and over
The figure for common-law partners is 23% in Sainte-Thérèse and 11% across Canada’s towns. To put it in context, 46% of residents 15 and over are married across Canada’s towns.
Above 88% of Canadian towns: 54% of households rent their home
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
Households in single-detached houses: 28%, below 85% of Canadian towns. Measured more widely, a quarter of households rent their home across Canada’s towns. 21% of homes were built in 2001 or later, more than the 16% built before 1961.
$65,000 a year: where the middle household sits
Incomes here are for 2020, the year before the census, CERB and other pandemic benefits included. What households took in before tax, at the middle and across income groups.
Households by income · share of households
The median across Canada’s towns is $86,000; Sainte-Thérèse’s, at $65,000, is 24% lower. The provincial yardstick is $74,000, the median across Quebec’s towns. Pandemic payments such as CERB reached 32% of income recipients here, against 28% in the typical town.
14% of residents lived at another address a year earlier, a share 72% of Canadian towns don’t reach
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
Just over a third of immigrants arrived between 2011 and 2021, against 27% across Canada’s towns. On average, just over one in ten residents lived at another address a year earlier across Canada’s towns. In Sainte-Thérèse, 7.9% of residents are immigrants. Lower than in 69% of Canadian towns: 2.6% of residents are not Canadian citizens.
A lower share of residents with no religion than 60% of Canadian towns, at 32%
Visible minority and Indigenous identity, then religion.
Visible minority and Indigenous identity · all residents
Religion · all residents
In Sainte-Thérèse, 1.5% of residents have an Indigenous identity, beside 2.8% across Canada’s towns. Compared with other places, visible minority residents are scarce here: 7.4%, fewer than in 63% of Canadian towns. Typically, just over a third of residents said they have no religion across Canada’s towns. Among other religions: Muslim (2%).
A smaller share of degree holders aged 25 to 64 than 60% of Canadian towns: 23%
Highest certificate, diploma or degree of residents aged 25 to 64.
Highest qualification · residents 25 to 64
No certificate, diploma or degree is held by 14%; in the typical town the share is 9.5%. Set beside that, 27% of residents 25 to 64 hold a bachelor’s degree or higher across Canada’s towns.
60% 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.
At 60%, more residents are in work than the typical 58% across Canada’s towns.
6th highest median age among 41 towns of 26,113 to 28,414
Median age of the Canadian towns nearest in population; hover a dot.
They run from Harbourfront-CityPlace, at 32.3, to Picton, at 56.8. By median age, Sainte-Thérèse sits among Rathwood (46.9), Agincourt North (47.2), Banbury-Don Mills (48.8) and Collingwood (50.8).
Every nearby town is younger than Sainte-Thérèse
The closest towns, coloured by how old their residents are.
| Town | People | Away | Median age | 65+ | Immigrants |
|---|---|---|---|---|---|
| Sainte-Thérèse | 27,253 | — | 47.6 | 27% | 7.9% |
| Boisbriand | 29,830 | 3.3 km | 40 | 15% | 12% |
| Rosemère | 14,198 | 3.6 km | 46.4 | 20% | 13% |
| Blainville | 61,739 | 3.8 km | 42 | 15% | 12% |
| Lorraine | 9,721 | 5.4 km | 42.4 | 17% | 12% |
| Sainte-Rose | 37,408 | 6.5 km | 41.2 | 14% | 25% |
| Bois-des-Filion | 10,666 | 6.9 km | 41.2 | 15% | 14% |
Health, work, housing and schools
What this data can and can’t tell you
- 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.
- Against Quebec’s towns and Canada’s towns. The middle of Quebec’s towns of 2,500 or more comes first, the middle of all Canadian towns second; cities as a whole and First Nations reserves stay out, and percentiles are within Canada.
Questions about Sainte-Thérèse’s residents
How diverse is Sainte-Thérèse?
7.9% of residents are immigrants (Canada’s towns: 17%); 7.4% belong to a visible minority and 1.5% have an Indigenous identity.
What religion are people in Sainte-Thérèse?
65% are Christian and 32% have no religion; 2.7% follow another religion.
Is Sainte-Thérèse good for families?
Under 15: 12% (Canada’s towns: 16%). Couple families: 41% of households. One-parent families: 10%. Schools near Sainte-Thérèse are on its Schools page.
What is the median income in Sainte-Thérèse?
The median household in Sainte-Thérèse took in $65,000 in 2020, against $86,000 across Canada’s towns.
What is the population of Sainte-Thérèse?
Sainte-Thérèse had about 27,253 residents in July 2025, Statistics Canada estimates; the 2021 Census counted 26,533, 2% more than 2016.
What is the average age in Sainte-Thérèse?
A median age of 47.6, older than 79% of Canadian towns. Children under 15 make up 12%, and people 65 and over 27%.
Is Sainte-Thérèse bilingual?
Both official languages are spoken by 53% of residents, against a typical 7.5% across Canada’s towns. 0.9% speak only English and 45% only French; 87% grew up with French.
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).