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46.8Median age
Who lives here · Census 2021

Renter households make up 7.5% in Stone Mills, less than in 95% of Canadian towns

With a median age of 46.8, Stone Mills is older than just over three quarters of Canadian towns. For Stone Mills, the census puts one-person households at 20%. Statistics Canada puts the town’s population at 8,523 for July 2025. Most recent wave: 12% of immigrants arrived in 2011–2021 (Canada’s towns: 27%).

Population change

From 2016 to 2021, 67% of Canadian towns grew faster than Stone Mills: +2%

Figures are from the 2021 Census unless dated otherwise. How the population moved between the last two censuses, and since.

Residents, 2016
7,702
residents
Census 2016
Residents, 2021
7,826
residents
Census 2021
July 2025
8,523
residents
Statistics Canada estimate

Change, 2016 to 2021

Stone Mills+2%
Ontario’s towns+6%
Canada’s towns+4%

The July 2025 estimate adds another 9%. Across Canada’s towns, half of towns changed by more than +4%; across Ontario’s towns, by more than +6%.

Ages

Only 9.8% of residents are aged 15 to 24 in Stone Mills

Every five-year age group as a share of residents; ticks mark the typical town.

Stone MillsCanada’s towns
0–410–1420–2430–3440–4450–5460–6470–7480–84

The biggest five-year age group is 55–59, with 9.5% of residents, 1.3 times the share across Canada’s towns. The highest share aged 65 or over among Ontario’s towns is Northern Bruce Peninsula’s: 41%. To put it in context, 11% of residents are aged 15 to 24 across Canada’s towns.

Median age of Canadian towns of 2,500+

2535455565

■ Stone Mills, 46.8. The typical town is 42.

Broad ages · share of residents

Under 1516%
15 to 249.8%
25 to 4422%
45 to 6433%
65 and over20%
Stone MillsOntario’s townsCanada’s towns

Women and men · all residents

49% women, 51% men

Stone Mills
Ontario’s towns
Canada’s towns
WomenMen

About an even split.

Households

Larger households than 58% of Canadian towns: 2.5 people on average

Households by family type and by the number of people in them.

One person 21%Couple family 66%One-parent family 6.2%Several families, or with others 4.5%Unrelated adults sharing 2.5%

Against Ontario’s towns and Canada’s towns

Stone Mills
Ontario’s towns
Canada’s towns

People per household

1 person20%
2 people41%
3 people16%
4 people15%
5 or more8%

Canada’s towns.

Against a figure of 8.2% across Canada’s towns, the share of one-parent families in Stone Mills comes in at 6%.

Couples

Married residents 15 and over: 54%, a higher share than 77% of Canadian towns

How adults live as couples, or don’t, with common-law unions shown on their own.

Marital status · residents 15 and over

Married54%
Living common-law14%
Never married20%
Separated or divorced7.4%
Widowed4.9%
Stone MillsOntario’s townsCanada’s towns

20% of adults are single and have never married; the typical town has 27%. For Stone Mills, the census puts common-law partners at 14%. Elsewhere, 46% of residents 15 and over are married across Canada’s towns.

Homes

Stone Mills sits above 97% of Canadian towns for households in single-detached houses (96%)

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

Stone Mills
Ontario’s towns
Canada’s towns
Single-detachedSemi-detachedRow houseApartment, under 5 storeysApartment, 5+ storeysMovable dwelling

Owners and renters · share of households

Owner92%
Renter7.5%
Condominium0%
Stone MillsOntario’s townsCanada’s towns

When homes were built · share of homes

Before 196138%
1961 to 198021%
1981 to 200025%
2001 to 201515%
2016 to 20212.4%

38% of homes were built before 1961 and 17% in 2001 or later. By way of comparison, 64% of households live in a single-detached house across Canada’s towns. Households in buildings of five or more storeys are rarer here than in nearly three quarters of Canadian towns.

Income

Household income at the median: $91,000 a year

Incomes are 2020’s, the census’s reference year, and include pandemic benefits such as CERB. Household income before tax: the median, and households by income group.

Median household income
$91,000
total, before tax, 2020
After tax
$80,000
median after-tax household income
Ontario
$91,600
the median town’s median
Canada
$86,000
the median town’s median

Households by income · share of households

Under $40,00015%
$40,000 to $79,99928%
$80,000 to $124,99927%
$125,000 to $199,99923%
$200,000 and over7.7%
Stone MillsOntario’s townsCanada’s towns

The middle household in Stone Mills had $91,000 before tax, 6% above the median across Canada’s towns ($86,000). The provincial yardstick is $91,600, the median across Ontario’s towns. Pandemic benefits reached 23% of residents with an income, against a typical 28%.

Immigrants & newcomers

Only 9.1% of residents lived at another address a year earlier in Stone Mills

Birthplaces and arrival years of immigrants, citizenship and recent moves.

Immigrants, by continent of birth · share of all residents; the bar runs to 35%

Stone Mills
5.8%
Ontario’s towns
26%
Canada’s towns
17%
AmericasEuropeAfricaAsiaOceania and other

When immigrants arrived · share of immigrants

Before 198047%
1980 to 199018%
1991 to 20009.6%
2001 to 201013%
2011 to 202112%
Stone MillsOntario’s townsCanada’s towns

Citizenship and moving · share of residents

Not Canadian citizens1%
Moved within the year9.1%
Moved from another municipality7%
Moved within five years31%

The largest groups of immigrants were born in Europe (65%) and in the Americas (23%). Compared with other places, immigrants are scarce here: 6%, fewer than in 78% of Canadian towns. Against that, just over one in ten residents lived at another address a year earlier across Canada’s towns. 5.8% of residents are not Canadian citizens across Canada’s towns, against 1% in Stone Mills.

Identity & religion

Above 72% of Canadian towns: 42% of residents said they have no religion

Identity and faith, in the census’s categories.

Visible minority and Indigenous identity · all residents

Stone MillsOntario’s townsCanada’s towns
Visible minority1.9%
Indigenous identity5.2%
Registered or Treaty Indian1.7%
0%15%30%

Religion · all residents

Stone MillsOntario’s townsCanada’s towns
Christian56%
No religion42%
Muslim0.4%
Sikh0%
Hindu0%
Jewish0.3%
Buddhist0.1%
Indigenous spirituality0%
0%35%70%

5.2% of residents have an Indigenous identity, against 2.8% across Canada’s towns. Across Canada’s towns, residents with no religion come to 35%. In Stone Mills, 1.9% of residents belong to a visible minority.

English & French

96% have English as their mother tongue; 6.2% also speak French

Who can speak English and French, mother tongue, and the language spoken most at home.

Can hold a conversation in · share of all residents

Stone Mills
Ontario’s towns
Canada’s towns
English onlyEnglish and FrenchFrench onlyNeither

Mother tongue · share of all residents

English96%
French1.2%
An Indigenous language0%
Another language2.6%
More than one0.8%
Stone MillsOntario’s townsCanada’s towns

At home: English 99%, French 0.3%. Fewer bilingual residents than in 61% of Canadian towns: 6.2%. On residents whose mother tongue is French, 1.2% here is much the same as across Canada’s towns.

Qualifications

Degree holders aged 25 to 64 make up 16% in Stone Mills, less than in 79% of Canadian towns

Education of residents 25 to 64, by highest credential.

Highest qualification · residents 25 to 64

No certificate8.7%
High school29%
Apprenticeship or trades9.8%
College or CEGEP36%
Bachelor’s or higher16%
…including a master’s2.4%
Stone MillsOntario’s townsCanada’s towns

At the bottom of the ladder, 8.7% hold no certificate of any kind, against 9.5% in the typical town. For comparison, 27% of residents 25 to 64 hold a bachelor’s degree or higher across Canada’s towns.

Work, in brief

In work on census day: 58% of adults

Census day was in May 2021, mid-pandemic: some of these rates are lower than in a usual year. Four labour figures from the census. Jobs, industries and the commute are on Work & commute.

Employment rate
58%
Canada’s towns 58%
Unemployment rate
7.9%
Canada’s towns 9.9%
Participation rate
63%
Canada’s towns 64%
Worked at home
22%
Canada’s towns 21%

The employment rate of 58% is close to the typical 58% across Canada’s towns.

Towns its size

Oldest by rank: 9th of 41 towns of 8,379 to 8,658 people

Towns of about this size, placed by median age.

Stone Mills 46.8
GarneauElectoral Area G, NanaimoDauphin
294662

Median ages here range from 30.2 in Garneau to 60.8 in Electoral Area G, Nanaimo. By median age, Stone Mills sits among Deer Lake (45.8), Huron-Kinloss (46), Brownsburg-Chatham (48.4) and Douro-Dummer (48.4).

Neighbours

A younger town than 2 of the 5 around it: Stone Mills

Neighbouring places and their median ages; each name opens its page. Distances here run 21–28 km: that is how far the nearest places with figures are from Stone Mills.

Greater NapaneeSouth FrontenacLoyalistTyendinagaDeserontoStone Mills
under 3838–4444–5050–5656+
TownPeopleAwayMedian age65+Immigrants
Stone Mills8,523—46.820%6%
Greater Napanee18,01620.9 km50.428%5.9%
South Frontenac21,59925.1 km48.822%5.9%
Loyalist19,76127.2 km45.222%8.2%
Tyendinaga5,00527.6 km42.416%4.7%
Deseronto1,84427.7 km4419%4.1%
More about Stone Mills’s residents

Health, work, housing and schools

How to read these numbers

What this data can and can’t tell you

  • Against Ontario’s towns and Canada’s towns. For each measure we take the median of Ontario’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. Not in the Census Profile: unpaid care, cars, internet access, and how each age group has changed since 2016. We also chart no ethnic origins besides visible minority and Indigenous identity.
  • 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 Stone Mills’s residents

What is the population of Stone Mills?

Stone Mills had about 8,523 residents in July 2025, Statistics Canada estimates; the 2021 Census counted 7,826, 2% more than 2016.

What is the average age in Stone Mills?

A median age of 46.8, older than 76% of Canadian towns. Children under 15 make up 16%, and people 65 and over 20%.

Is Stone Mills bilingual?

6.2% of residents can speak both English and French (typical across Canada’s towns: 7.5%); 0% speak French only and 94% English only. French is the mother tongue of 1.2%.

How diverse is Stone Mills?

6% of residents are immigrants (Canada’s towns: 17%); 1.9% belong to a visible minority and 5.2% have an Indigenous identity.

What religion are people in Stone Mills?

56% are Christian and 42% have no religion; 1.9% follow another religion.

Is Stone Mills good for families?

Under 15: 16% (Canada’s towns: 16%). Couple families: 64% of households. One-parent families: 6%. Schools near Stone Mills are on its Schools page.

What is the median income in Stone Mills?

The median household in Stone Mills took in $91,000 in 2020, against $86,000 across Canada’s towns.

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).