Photo: Parcours riverain - Ville de Montréal from Canada · CC BY 2.0A larger share of residents aged 15 to 24 than 97% of Canadian towns: 17%
With a median age of 49.6, Senneville is older than 84% of Canadian towns. Here, 7.4% of residents lived at another address a year earlier. Its population is up 3% on 2016. Households in single-detached houses: 90% here and 64% across Canada’s towns.
What stands out about the people of Senneville
A bilingual town
80% of residents can hold a conversation in both English and French, more than in 99% of Canadian towns; 3.7% speak French only and 17% English only. English & French ↓
Many graduates
A bachelor’s degree or higher is held by 59% of 25- to 64-year-olds, more than in 93% of Canadian towns, and a master’s by 14%. Qualifications ↓
Written from the data on this page: Statistics Canada, 2021 Census.
Senneville: 80% of residents speak English and French, above 99% of Canadian towns
Every figure here comes from the 2021 Census unless it carries another date. 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 26%, English 61%. The share of bilingual residents across Canada’s towns is 7.5%. Senneville has fewer residents whose mother tongue is English than 70% of Canadian towns, at 45%.
Senneville’s population moved +3% on 2016, less than in 55% of Canadian towns
Residents at the 2016 and 2021 censuses and the latest estimate, with the 2016–2021 change beside other towns.
Change, 2016 to 2021
For comparison, the median is +4% across Canada’s towns and +4% across Quebec’s towns. By July 2025, the estimate had risen a further 10%.
Residents aged 65 and over make up 25% in Senneville, more than in 79% of Canadian towns
Age bands of five years, the town’s bars against the typical town’s ticks.
The largest age band is 50–54: 9.5% of residents, 1.5 times the share across Canada’s towns. As a reference point, 19% of residents are 65 or over across Canada’s towns. Across Senneville, 14% of residents are under 15.
Broad ages · share of residents
Women and men · all residents
50% women, 50% men
About an even split.
Senneville ranks below 85% of Canadian towns on one-person households: 17%
Household types, then household sizes.
Against Quebec’s towns and Canada’s towns
People per household
Canada’s towns.
Households average 2.7 people, against 2.4 across Canada’s towns. One-person households make up 27% across Canada’s towns. For Senneville, the census puts one-parent families at 5.6%.
Common-law partners: 15%, a higher share than 75% of Canadian towns
Residents 15 and over by marital status; the census counts common-law couples separately.
Marital status · residents 15 and over
Here 50% of residents 15 and over are married, where the figure across Canada’s towns is 46%. Across Canada’s towns, common-law partners come to 11%.
Renter households make up 18% in Senneville, less than in 66% 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
13% of homes need major repairs, against a typical 5.8%. Across Canada’s towns, renter households come to 25%. Older homes outnumber new: 59% predate 1961, 2.8% date from 2001 or later. Households in buildings of five or more storeys are rarer here than in 74% of Canadian towns.
$147,000 a year is the median household income here
Census incomes cover 2020, when emergency benefits like CERB lifted many households’ totals. Household income before tax: the median, and households by income group.
Households by income · share of households
Half of Senneville’s households had a total income above $147,000, 71% more than the median across Canada’s towns ($86,000). For Quebec’s towns, the median household income is $74,000. COVID-19 benefits were paid to 25% of residents with an income, where the typical town had 28%.
Above 55% of Canadian towns: 20% of residents are immigrants
Immigrants, newcomers and movers.
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
Immigrants here were most often born in Europe (65%), then in the Americas (19%). The wider picture: 17% of residents are immigrants across Canada’s towns. 3.7% of residents are not Canadian citizens, fewer than in 61% of Canadian towns.
60% said they are Christian and 35% that they have no religion
Visible minority and Indigenous identity, then religion.
Visible minority and Indigenous identity · all residents
Religion · all residents
Among other religions: Muslim (3.7%). Indigenous residents are rarer here than in 98% of Canadian towns. Visible minority residents: 13% here and 15% across Canada’s towns.
Senneville sits above 93% of Canadian towns for degree holders aged 25 to 64 (59%)
Highest certificate, diploma or degree of residents aged 25 to 64.
Highest qualification · residents 25 to 64
2.3% have no certificate, diploma or degree (typical: 9.5%). Across the comparison, 27% of residents 25 to 64 hold a bachelor’s degree or higher across Canada’s towns.
A job for 53% of residents aged 15 and over
May 2021 was still a pandemic month: the census’s work figures reflect that. The census’s labour rates, in brief. Jobs, industries and the commute are on Work & commute.
At 53%, fewer residents are in work than the typical 58% across Canada’s towns, and 25% are 65 or over.
Nearby, 1 of 6 towns have older populations than Senneville
The closest towns, coloured by how old their residents are.
| Town | People | Away | Median age | 65+ | Immigrants |
|---|---|---|---|---|---|
| Senneville | 1,042 | — | 49.6 | 25% | 20% |
| Sainte-Anne-de-Bellevue | 5,393 | 0.9 km | 46 | 22% | 20% |
| L'Île-Perrot | 11,921 | 2.9 km | 44.4 | 20% | 18% |
| Baie-D'Urfé | 3,706 | 3.7 km | 50.4 | 26% | 27% |
| Terrasse-Vaudreuil | 1,883 | 3.8 km | 45.2 | 18% | 15% |
| Pincourt | 15,220 | 4.9 km | 42.4 | 17% | 19% |
| Notre-Dame-de-l'Île-Perrot | 11,716 | 4.9 km | 43.6 | 14% | 17% |
Health, work, housing and schools
What this data can and can’t tell you
- Against Quebec’s towns and Canada’s towns. For each measure we take the median of Quebec’s towns and neighbourhoods of 2,500 or more, then the median of all Canadian towns. Neither counts whole cities or reserves, and every percentile is a Canadian one.
- What these tables don’t give. Unpaid care, car ownership and internet access aren’t in the Census Profile, nor is the change by age since 2016. Ethnic origins other than visible minority and Indigenous identity are left out of the charts.
- The census’s own words. In the census, “visible minority” is the Employment Equity Act’s term for people who are non-white in colour or race and not Indigenous. Like immigrant status, Indigenous identity and religion, which residents reported themselves, it is compared with other towns, never turned into a label.
Questions about Senneville’s residents
How diverse is Senneville?
20% of residents are immigrants (Canada’s towns: 17%); 13% belong to a visible minority and 0% have an Indigenous identity.
What religion are people in Senneville?
60% are Christian and 35% have no religion; 5.2% follow another religion.
Is Senneville good for families?
Under 15: 14% (Canada’s towns: 16%). Couple families: 68% of households. One-parent families: 5.6%. Schools near Senneville are on its Schools page.
What is the median income in Senneville?
The median household in Senneville took in $147,000 in 2020, against $86,000 across Canada’s towns.
What is the population of Senneville?
Senneville had about 1,042 residents in July 2025, Statistics Canada estimates; the 2021 Census counted 951, 3% more than 2016.
What is the average age in Senneville?
A median age of 49.6. Children under 15 make up 14%, and people 65 and over 25%.
Is Senneville bilingual?
English and French: 80% speak both (Canada’s towns: 7.5%). English only: 17%. French only: 3.7%. French mother tongue: 31%.
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).