Photo: Royalbroil · CC BY-SA 4.0Half of Black Diamond is over 50.8, older than 87% of Canadian towns
Against a figure of 11% across Canada’s towns, the share of residents aged 15 to 24 in Black Diamond comes in at 7.5%. At 6.8%, the share of Indigenous residents is higher than in 78% of Canadian towns. The latest estimate, for July 2025, is 2,910 residents; the 2021 Census found 1,180 households. The census found that 72% of households live in a single-detached house here.
What stands out about the people of Black Diamond
Older than most towns
Black Diamond’s median age is 50.8; the typical median across Canadian towns is 42. 30% are 65 or over, against 19% across Canada’s towns. Ages ↓
Written from the data on this page: Statistics Canada, 2021 Census.
Slower growth than 71% of Canadian towns: Black Diamond changed by +1% since 2016
Every figure here comes from the 2021 Census unless it carries another date. Residents at the 2016 and 2021 censuses and the latest estimate, with the 2016–2021 change beside other towns.
Change, 2016 to 2021
Across Canada’s towns, half of towns changed by more than +4%; across Alberta’s towns, by more than +1%. Statistics Canada’s estimate for July 2025 is 7% higher again.
Black Diamond: 30% of residents are 65 or over, above 92% of Canadian towns
Residents by five-year age band, each beside the typical town (the tick).
16% of residents are under 15. Typically, 19% of residents are 65 or over across Canada’s towns.
Median age of Canadian towns of 2,500+
■ Black Diamond, 50.8. The typical town is 42.
Broad ages · share of residents
Women and men · all residents
51% women, 49% men
About an even split.
Smaller households than 64% of Canadian towns: 2.3 people on average
Households by family type and by the number of people in them.
Against Alberta’s towns and Canada’s towns
People per household
Canada’s towns.
The figure for one-person households is 30% in Black Diamond and 27% across Canada’s towns. Across Black Diamond, 7.2% of households are one-parent families.
51% of residents 15 and over are married, more than in 63% of Canadian towns
Married, common-law, single: residents 15 and over.
Marital status · residents 15 and over
19% of adults have never married and don’t live common-law (typical: 27%). As a yardstick, 46% of residents 15 and over are married across Canada’s towns. Common-law partners: just over a tenth of the total.
Black Diamond ranks below 69% of Canadian towns on renter households: 17%
Dwelling types, tenure and age of the housing. 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
Newer homes outnumber old: 45% date from 2001 or later, 15% from before 1961. To put it in context, 25% of households rent their home across Canada’s towns. Households in buildings of five or more storeys are rarer here than in nearly three quarters of Canadian towns.
Household income, middle of the range: $75,500 a year
The census asked about income in 2020: a pandemic year, with CERB and other emergency benefits counted in. Household income before tax: the median, and households by income group.
Households by income · share of households
At $75,500, the middle household in Black Diamond earned 12% less than the median across Canada’s towns ($86,000). Within Alberta’s towns, the household in the middle had $92,200. Pandemic benefits reached 23% of residents with an income, against a typical 28%.
In Black Diamond, 12% of residents lived at another address a year earlier, more than in 62% of Canadian towns
Where immigrants were born and when they came, and how recently residents moved in.
Immigrants, by continent of birth · share of all residents; the bar runs to 30%
When immigrants arrived · share of immigrants
Citizenship and moving · share of residents
The figure for immigrants is 8.5% in Black Diamond and 17% across Canada’s towns. Across Canada’s towns, 11% of residents lived at another address a year earlier. The largest groups of immigrants were born in Europe (76%) and in the Americas (13%). 3.6% of residents are not Canadian citizens, a lower share than in 61% of Canadian towns.
In Black Diamond, 49% of residents said they have no religion, more than in 86% of Canadian towns
Identity and faith, in the census’s categories.
Visible minority and Indigenous identity · all residents
Religion · all residents
Here 4.9% of residents belong to a visible minority, where the figure across Canada’s towns is 15%. As a reference point, 35% of residents said they have no religion across Canada’s towns.
93% have English as their mother tongue; 4.6% also speak French
The official languages residents can speak, and the ones they learned first.
Can hold a conversation in · share of all residents
Mother tongue · share of all residents
Against a figure of 7.5% across Canada’s towns, the share of bilingual residents in Black Diamond comes in at 4.6%. Residents whose mother tongue is French account for 1.8%.
16% of residents 25 to 64 hold a bachelor’s degree or higher, fewer than in 78% of Canadian towns
Education of residents 25 to 64, by highest credential.
Highest qualification · residents 25 to 64
Holding no credential: 9.9% (typical 9.5%). As a reference point, 27% of residents 25 to 64 hold a bachelor’s degree or higher across Canada’s towns.
A job for 52% of residents aged 15 and over
May 2021 was still a pandemic month: the census’s work figures reflect that. Work, briefly: employment, unemployment, participation and working from home. Jobs, industries and the commute are on Work & commute.
At 52%, fewer residents are in work than the typical 58% across Canada’s towns, and 30% are 65 or over.
Among 41 towns of 2,866 to 2,954 people, the 9th oldest
The Canadian towns closest in population, from youngest to oldest.
The span goes from 30 (McKernan) up to 61.2 (Parry Sound, Unorganized, Centre Part). Closest in median age to Black Diamond are Sainte-Catherine-de-Hatley (50), Head of St Margarets Bay (50.8), Perry (51.6) and Springdale (53.6).
Black Diamond is older than every town around it
Neighbouring places and their median ages; each name opens its page.
| Town | People | Away | Median age | 65+ | Immigrants |
|---|---|---|---|---|---|
| Black Diamond | 2,910 | — | 50.8 | 30% | 8.5% |
| Turner Valley | 2,784 | 3.9 km | 46 | 23% | 9.2% |
| Foothills County | 25,789 | 18.7 km | 48.4 | 20% | 13% |
| Okotoks | 33,482 | 19.2 km | 39.2 | 15% | 13% |
Health, work, housing and schools
What this data can and can’t tell you
- 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. 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 Alberta’s towns and Canada’s towns. For each measure we take the median of Alberta’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.
Questions about Black Diamond’s residents
What is the average age in Black Diamond?
A median age of 50.8, older than 87% of Canadian towns. Children under 15 make up 16%, and people 65 and over 30%.
Is Black Diamond bilingual?
English and French: 4.6% speak both (Canada’s towns: 7.5%). English only: 95%. French only: 0%. French mother tongue: 1.8%.
How diverse is Black Diamond?
8.5% of residents are immigrants (Canada’s towns: 17%); 4.9% belong to a visible minority and 6.8% have an Indigenous identity.
What religion are people in Black Diamond?
48% are Christian and 49% have no religion; 2.7% follow another religion.
Is Black Diamond good for families?
Under 15: 16% (Canada’s towns: 16%). Couple families: 54% of households. One-parent families: 7.2%. Schools near Black Diamond are on its Schools page.
What is the median income in Black Diamond?
The median household in Black Diamond took in $75,500 in 2020, against $86,000 across Canada’s towns.
What is the population of Black Diamond?
Black Diamond had about 2,910 residents in July 2025, Statistics Canada estimates; the 2021 Census counted 2,730, about the same as 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).