
Stone MillsOntario
Its census division is Lennox and Addington. 8,523 residents make their home in this town in Ontario.
Is Stone Mills a good place to live?
Where it does best is safety (A+). A median home here was worth $400,000 at the census, or 4.4 times what the middle household earns in a year. What holds it back is walkability (C−). Overall, that makes a B+, better than 73% of Canadian towns. Its place in the ranking is #199 of 858 in Ontario.
Figures: home values and income: Statistics Canada, Census 2021.
This town's rent is the 2021 census rent scaled to 2025 by its province's ratio of surveyed to census rents: no rental survey covers it, so its Cost Grade is less sure. Health is graded on the health region's survey figures and life expectancy, with the distance to hospital giving the town its own spread.
How Stone Mills grades
Each subject compares Stone Mills with Canadian towns of 2,500 or more, ordered by how far it is from the middle. Towns in other countries are graded separately.
How TownRatings grades Canadian towns →
What makes Stone Mills stand out
The 2 things Stone Mills does most differently from other towns.
The data
Data highlights are ordered by what stands out in Stone Mills.
Violent crime weighs less on Stone Mills than on Ontario’s towns or Canadian towns: a violent severity index of 34
Violent incidents came to 7.6 per 1,000 residents a year, below both Ontario’s towns (10.5) and Canadian towns (12). Each year brings 10.9 property incidents per 1,000 residents.
Year by year · Crime Severity Index for each year
| 2023–2025 | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Property crime per 1,000 | 10.9 | 30.5 | 31.2 |
| Violent Crime Severity Index | 34 | 76 | 86 |
| Violent crime | 7.6 | 10.5 | 12 |
Statistics Canada, Uniform Crime Reporting Survey, 2023–2025 average
No high school in or near Stone Mills: the closest is 20 km off
The Catholic boards run 1 of its 6 schools, below the 34% in Ontario. The schools around it answer to 2 boards, lower than both Ontario’s towns (4) and Canadian towns (3). Results are mixed: 1 of 5 schools above the middle in Ontario, 1 below it. Also worth knowing: its elementary schools are small, 142 students on average, against 365 in Ontario.
| School | Level | Students | System |
|---|---|---|---|
| Selby Public School Second fifth in OntarioLargest elementary schoolElementary · Grades JK–8 | Elementary · Grades JK–8 | 285 | English public |
Schools by system · Schools within 3 km
| Schools within 3 km | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Nearest secondary school | 20 km | 1.2 km | 1.2 km |
| School boards | 2 | 4 | 3 |
| Nearest elementary school | 2.6 km | 0.5 km | 0.5 km |
Provincial school lists and results, 2024-25
A flood study covers Stone Mills: 1 on the national inventory, the newest from Quinte Conservation
In Health Canada’s survey, just over one in ten homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Earthquake risk in Stone Mills is ordinary: NRCan’s model puts building losses at $0.044 a year per $1,000 of value, close to the typical town’s $0.030.
Radon tests above the guideline · share of tested homes, 200 Bq/m³
| Hazards | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Radon tests above the guideline | 11% | 4% | 6.6% |
| Earthquake loss per $1,000 of buildings a year | $0.044 | $0.043 | $0.030 |
NRCan seismic risk model and burned areas, Health Canada radon survey, the Flood Hazard Map Inventory
Trips to work from Stone Mills take longer than from Ontario’s towns or Canadian towns: 33 min on average
How working residents got to work · census 2021
| Census 2021 | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Average trip | 33 min | 29 min | 26 min |
Statistics Canada, Census 2021 (labour and commuting) · These are May 2021 figures, gathered while COVID-19 kept many people home or out of work.
Summer runs warm in Stone Mills: July highs of 27.2°C, above Ontario’s towns and Canadian towns
The coldest nights, in January, bottom out at −12.4°C, lower than Ontario’s towns (−9.1°C) yet higher than Canadian towns (−13.5°C). Most of the snow comes in January, about 45 cm. September is the wettest month, with 100 mm of rain and snow on average.
Average high by season · ECCC normals, 1991–2020
| Normals, 1991–2020 | Stone Mills | Ontario | Canada |
|---|---|---|---|
| July afternoon high | 27.2°C | 26.7°C | 25.5°C |
| January night low | −12.4°C | −9.1°C | −13.5°C |
| Precipitation a year | 984 mm | 902 mm | 883 mm |
| Snowfall a year | 158 cm | 146 cm | 141 cm |
Environment and Climate Change Canada, Canadian Climate Normals 1991–2020 (Centreville)
In Stone Mills, November normally means 7°C afternoons and −2°C nights
November usually brings some 12 cm of snow. Next comes December, with normal highs of freezing and lows of −8°C. Expect about 88 mm of rain and snow over November. The year peaks in July (27°C) and bottoms out in January (−12°C).
Normal highs, the months ahead · ECCC normals, 1991–2020
| Season | High | Low | Rain and snow |
|---|---|---|---|
| Winter | −1°C | −11°C | 229 mm |
| Spring | 12°C | 1°C | 238 mm |
| Summer | 26°C | 14°C | 233 mm |
| Autumn | 14°C | 4°C | 285 mm |
ECCC normals, 1991–2020 (Centreville); the forecast is on the Weather page
72% of Ontario’s lower-tier municipalities spend more per resident than Stone Mills
Shelby Kramp-Neuman (Conservative Party of Canada) is the MP for Hastings—Lennox and Addington—Tyendinaga, the riding (a federal electoral district, which elects one MP) that takes in Stone Mills.
| Turnout | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Municipal election, 2022 | 30% | 31% | 31% |
Wikidata, MAMH, MMAH, Statistics Canada
Lennox & Addington Library - Yarker Branch and Lennox & Addington Library - Tamworth Branch are Stone Mills’s two public libraries
No library board reports for Stone Mills alone: its libraries belong to a county or regional system, whose figures cover many towns.
Provincial library statistics, OpenStreetMap, the CRA and Statistics Canada
Around Stone Mills, 53% of adults call their health very good or excellent
Across the region, life runs to 81.8 years on average: women 83.9, men 79.5, in 2022/2024. Just over one in ten adults smoke, daily or now and then, above both Ontario’s towns (10%) and Canadian towns (12%). Measured from where Stone Mills’ residents live, the nearest hospital is 20 km away, beyond the typical 3.7 km. Stone Mills shares its health survey and life expectancy numbers with the rest of the Kingston, Frontenac and Lennox and Addington Health Unit.
Very good or excellent health · adults, age-standardised
| Health | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Smokers | 12% | 10% | 12% |
| Very good or excellent health | 53% | 51% | 52% |
| Life expectancy at birth | 81.8 | 82.8 | 81.5 |
Statistics Canada, Canadian Community Health Survey 2023/2024 and life expectancy 2022/2024; Open Database of Healthcare Facilities
Fewer of Stone Mills’s people belong to a visible minority than in Ontario’s towns or Canadian towns: 1.9%
5.2% of residents have an Indigenous identity, higher than both Ontario’s towns (1.6%) and Canadian towns (2.8%). People 65 and over make up a fifth of the town.
Ages · Share of residents in each age group, Census 2021
Schooling · Highest qualification, residents 15 and over
Women and men · all residents
Women make up 49.3% of Stone Mills
The 2021 census counted 3,855 women and 3,970 men here, where women make up 50.9% of Canada.
| Stone Mills | Ontario | Canada | |
|---|---|---|---|
| Under 15 | 16% | 15% | 16% |
| 15 to 64 | 64% | 65% | 64% |
| 65+ | 20% | 19% | 19% |
| No certificate, diploma or degree | 15% | 15% | 16% |
| Postsecondary qualification | 55% | 56% | 56% |
Statistics Canada, Census 2021; Ontario and Canada: medians of towns of 2,500+
Few places match Stone Mills for protected land nearby: more than nearly 9 in 10 Canadian towns
28 km separate the town from Thousand Islands National Park, its nearest national park. Some protected land is inside the town: 11% of its area. The The Great Trail (Eastern Ontario) is the one mapped walking route close by.
Protected land · of the land within 10 km
| Outdoors | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Protected land within 10 km | 10% | 2.3% | 2.3% |
| Public protected areas within 10 km | 5 | 4 | 4 |
Canadian Protected and Conserved Areas Database (CPCAD), OpenStreetMap routes and beaches
More households own their home in Stone Mills than in Ontario’s towns or across Canadian towns: 92%
Shelter took 30% or more of income for just over one in ten households, lower than both Ontario’s towns (22%) and Canadian towns (18%). Rent took 15% of household income, below both Ontario’s towns (22%) and Canadian towns (20%).
What homes were worth · The median owner’s estimate at the 2021 census
| Census 2021 | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Households spending 30%+ on shelter | 11% | 22% | 18% |
| Rent as a share of income | 15% | 22% | 20% |
| Households owning their home | 92% | 76% | 74% |
| Median home value, 2021 | $400,000 | $695,000 | $406,000 |
Statistics Canada, Census 2021; CMHC Rental Market Survey via Statistics Canada · These are 2021 census values, as owners judged them, set against household income in 2020.
Stone Mills keeps its older homes: 38% from before 1961
| Heritage | Stone Mills | Ontario | Canada |
|---|---|---|---|
| Homes built before 1961 | 38% | 22% | 18% |
Canadian Register of Historic Places, Directory of Federal Heritage Designations, Québec’s Répertoire du patrimoine culturel, Wikidata; Census 2021 homes by period
Everything we know about Stone Mills
Lennox & Addington Dark Sky Viewing Area and 3 more in and around Stone Mills
A first look at Stone Mills’s museums, historic sites and days out, and a few just outside town.
Famous people from Stone Mills
10 notable people were born in Stone Mills.


Photo credits
Sir Gilbert Parker, 1st Baronet: Unknown author, Public domain · Franklin La Du Ferguson: Unknown author, Public domain
About Stone Mills
Town in Ontario
For Stone Mills, TownRatings uses Statistics Canada’s census-subdivision boundary in Ontario, and every figure on its pages covers that whole area.
Statistics Canada: population estimates 2025 (17-10-0155), Census of Population 2021, 2021 census boundaries.
- Population
- 8,523 (people, 2025 estimate)
- Province or territory
- Ontario
- Census division
- Lennox and Addington
- Census subdivision
- 3511030
Questions about Stone Mills
Who are the people of Stone Mills?
Visible minorities are 2% of the population, where the middle of Canadian towns is 15%. Immigrants make up 6%, and Indigenous people 5%.
What kind of homes are in Stone Mills?
Mostly 96% single-detached houses (the median of Canadian towns: 64%), with 0% of homes in buildings of five or more storeys. Households hold 2.5 people on average, and 20% have just one.
Has Stone Mills grown?
It added people: 7,702 in 2016, 7,826 in 2021, 1.6% more, where the middle of Canadian towns grew 4.1%. Statistics Canada’s 2025 estimate is 8,523.
How old are the people of Stone Mills?
The median resident is 46.8 years old, against 45.2 for the median of Canadian towns. 16% are under 15 and 20% are 65 or over.
Sources: Statistics Canada, Census of Population 2021 · population estimates 2025 (17-10-0155) and 2021 census boundaries · Uniform Crime Reporting Survey 2023–25 (35-10-0026, 35-10-0183 to 35-10-0190) · CMHC rents as published by Statistics Canada (34-10-0133) · grades by TownRatings. 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).