This is a list of census areas of demographic notability in Canada. Data is from the Canada 2021 Census.

All census subdivisions Most populous municipality: Toronto, Ontario, 2,794,356 Highest percentage increase in population from 2016: Kapawe'no First Nation 229, Alberta, 1,840.0% This geographic area underwent a boundary change since the 2016 Census that resulted in an adjustment to the 2016 population and/or dwelling counts for this area. The second highest percentage increase was in The Narrows 49, Manitoba, 1,000.0%. Largest census subdivision by land area: Qikiqtaaluk, Nunavut, 968,988.38 km2 Highest % of the population under 15: Rolling River 67B, Manitoba, 54.5% Highest % of the population 15-64: Stryen 9, Lytton First Nation, British Columbia, 100.0% Lowest % of the population 15-64: Notre-Dame-des-Anges, Quebec, 2.1% Highest % of the population 65+: Notre-Dame-des-Anges, Quebec, 97.9% Highest % of the population 85+: Notre-Dame-des-Anges, Quebec, 60.4% Highest median age: Notre-Dame-des-Anges, Quebec, 87 Lowest median age: Halfway River 168, British Columbia, 14.5

Census subdivisions over 5,000 people Highest % increase in population from 2016: East Gwillimbury, Ontario, 44.4% Highest % decrease in population from 2016: Athabasca County, Alberta, -11.6% Largest census subdivision by land area: Kenora, Unorganized, Ontario, 388,982.20 km2 Smallest municipality by land area: Montreal West, Quebec, 1.37 km2 Highest population density: Vancouver, British Columbia, 5,749.9/km2 Lowest population density: Kenora, Unorganized, Ontario, 0.019/km2 Highest % of the population under 15: Mackenzie County, Alberta, 36.3% Lowest % of the population under 15: Qualicum Beach, British Columbia, 6.8% Highest % of the population 15-64: Whistler, British Columbia, 79.8% Lowest % of the population 15-64: Qualicum Beach, British Columbia, 36.9% Highest % of the population 65+: Qualicum Beach, British Columbia, 56.3% Lowest % of the population 65+: Iqaluit, Nunavut, 3.7% Highest % of the population 85+: Sidney, British Columbia, 9.3% Lowest % of the population 85+: Iqaluit, Nunavut, 0.1% Highest median age: Qualicum Beach, British Columbia: 67.5 Lowest median age: Mackenzie County, Alberta, 23.4 Highest % of people whose mother tongue is English: Bay Roberts, Newfoundland and Labrador, 99.2% Lowest % of people whose mother tongue is English: Amqui, Quebec, 0.2% Highest % of people whose mother tongue is French: Amqui, Quebec: 99.3% Lowest % of people whose mother tongue is French: Mackenzie County, Alberta; Taber, Alberta; and Norway House, Manitoba, 0.1% Highest % of people whose mother tongue is a Non-official language: Mackenzie County, Alberta, 64.1% Lowest % of people whose mother tongue is a Non-official language: Saint-Honoré, Quebec and Amqui, Quebec, 0.2% Highest % immigrants: Richmond, British Columbia, 60.3% Lowest % immigrants: Bay Roberts, Newfoundland and Labrador, 0.34% Highest % of population with no high school degree: Mackenzie County, Alberta, 54.2% Lowest % of population with no high school degree: Whistler, British Columbia, 4.5% Highest % with university degree: Westmount, Quebec, 63.3% Lowest % of population with university degree: Saint-Lin–Laurentides, Quebec, 5.0%

Visible minorities and Aboriginal population Highest % Arab: Laval, Quebec, 11.42% Highest % Black: Brooks, Alberta, 22.29% Highest % Chinese: Richmond, British Columbia, 54.25% Highest % Filipino: Neepawa, Manitoba, 46.85% Highest % First Nations: Norway House, Manitoba, 95.50% Highest % Indigenous: Norway House, Manitoba, 98.59% Highest % Inuit: Iqaluit, Nunavut, 52.39% Highest % Japanese: Banff, Alberta, 6.20% Highest % Korean: Coquitlam, British Columbia, 8.07% Highest % Latin American: Leamington, Ontario, 7.42% Highest % Métis: Meadow Lake, Saskatchewan, 23.15% Highest % South Asian: Brampton, Ontario, 52.42% Highest % Southeast Asian: Chestermere, Alberta, 5.03% Highest % West Asian: Richmond Hill, Ontario, 13.15% Highest % visible minority: Markham, Ontario, 82.10% Lowest % visible minority: Norway House, Manitoba, 0.19%

Census metropolitan areas

Population and area

Most populous: Toronto, Ontario, 6,202,225 Least populous: Red Deer, Alberta, 100,844 Highest increase in population (%) from 2016: Kelowna, British Columbia, 14.0% Lowest increase in population (%), from 2016: Saguenay, Quebec, 0.03% Largest land area (km2): Edmonton, Alberta, 9,416.19 Smallest land area (km2): Red Deer, Alberta, 104.34 Highest population density (per km2): Toronto, Ontario, 1,050.7 Lowest population density (per km2): Fredericton, New Brunswick, 18.1

Age and sex

Highest proportion (%) of men: Drummondville, Quebec, 50.04% Highest proportion (%) of women: Peterborough, Ontario, 51.89% Highest median age: Trois-Rivières, Quebec, 46.4 Lowest median age: Saskatoon, Saskatchewan, 36.8 Highest percentage of children (0–14 years): Saskatoon, Saskatchewan, 19.11% Highest percentage of working-age population (15–64 years): Vancouver, British Columbia, 68.49% Highest percentage of seniors (65 years and over): Trois-Rivières, Quebec, 25.66% Highest percentage of seniors (85 years and over): Peterborough, Ontario, 3.4%

Education

Highest % of university degree at bachelor's level or above: Toronto, Ontario, 38.0% Lowest % of university degree at bachelor's level or above: Drummondville, Quebec, 12.8%

Income

Highest median employment income: Ottawa-Gatineau: $46,400 Lowest median employment income: St. Catharines-Niagara, Ontario, $29,400 Median employment income: Less than high school education: Highest: Lethbridge, Alberta, $23,000 Lowest: Kingston, Ontario, $9,000 High school education: Highest: Chilliwack, British Columbia, $32,400 Lowest: Saguenay, Quebec, $20,200 Postsecondary certificate or diploma below bachelor level: Highest: Edmonton, Alberta, $51,200 Lowest: St. Catharines-Niagara, Ontario, $36,000 Bachelor's degree or higher: Highest: Ottawa-Gatineau, $70,000 Lowest: St. Catharines-Niagara, Ontario, $46,800 Canadian-born, with less than high school education: Highest: Edmonton, Alberta, $22,200 Lowest: Windsor, Ontario, $8,300 Canadian-born, with high school education: Highest: Regina, Saskatchewan, $34,000 Lowest: Toronto, Ontario, $20,200 Canadian-born, with university degree: Highest: Ottawa-Gatineau, $76,000 Lowest: St. Catharines-Niagara, Ontario, $54,000 Immigrant population, with less than high school education: Highest: Lethbridge, Alberta, $34,400 Lowest: Fredericton, New Brunswick, $5,480 Immigrant population, with high school education: Highest: Red Deer, Alberta; and Abbotsford-Mission, British Columbia, $33,200 Lowest: Trois-Rivières, Quebec, $15,600 Immigrant population, with university degree: Highest: Ottawa-Gatineau, $62,400 Lowest: St. Catharines-Niagara, Ontario, $37,600

Visible minorities and Indigenous population

Highest population Not-a-visible-minority: Montreal, Quebec, 2,597,870 Visible minorities: Toronto, Ontario, 3,501,270 Arab: Montreal, Quebec, 246,150 Black: Toronto, Ontario, 488,155 Chinese: Toronto, Ontario, 679,730 Filipino: Toronto, Ontario, 281,150 First Nations: Montreal, Quebec, 89,375 Indigenous: Montreal, Quebec, 112,350 Inuit: Ottawa-Gatineau, 2,235 Japanese: Vancouver, British Columbia, 31,200 Korean: Toronto, Ontario, 74,210 Latin American: Toronto, Ontario, 156,460 Métis: Winnipeg, Manitoba, 52,370 South Asian: Toronto, Ontario, 1,182,485 Southeast Asian: Toronto, Ontario, 102,330 West Asian: Toronto, Ontario, 160,335

Highest percentage Not-a-visible-minority: Saguenay, Quebec, 98.1% Visible minorities: Toronto, Ontario, 57.0% Arab: Windsor, Ontario, 6.2% Black: Montreal, Quebec, 8.1% Chinese: Vancouver, British Columbia, 19.7% Filipino: Winnipeg, Manitoba, 10.3% First Nations: Thunder Bay, Ontario, 10.1% Indigenous: Thunder Bay, Ontario, 14.6% Inuit: St. John's, Newfoundland and Labrador, 0.8% Japanese: Lethbridge, Alberta, 1.4% Korean: Vancouver, British Columbia, 2.4% Latin American: Montreal, Quebec, 3.3% Métis: Winnipeg, Manitoba, 6.4% South Asian: Abbotsford-Mission, British Columbia, 25.9% Southeast Asian: Vancouver, British Columbia, 2.2% West Asian: Toronto, Ontario, 2.6%

Language Mother tongue Highest population with English as mother tongue: Toronto, Ontario, 3,070,355 Highest population with French as mother tongue: Montreal, Quebec, 2,515,095 Highest population with both English and French as mother tongues: Montreal, Quebec, 79,655 Highest population with a non-official language as mother tongue: Toronto, Ontario, 2,597,980 Highest population with an Indigenous language as mother tongue: Winnipeg, Manitoba, 2,735 Lowest population with English as mother tongue: Drummondville, Quebec, 1,020 Lowest population with French as mother tongue: Lethbridge, Alberta, 865 Lowest population with both English and French as mother tongues: Lethbridge, Alberta, 225 Lowest population with a non-official language as mother tongue: Saguenay, Quebec, 1,650 Lowest population with an Indigenous language as mother tongue: Drummondville, Quebec; and Guelph, Ontario, 0 Highest percentage with English as mother tongue: St. John's, Newfoundland and Labrador, 94.5% Highest percentage with French as mother tongue: Saguenay, Quebec, 97.5% Highest percentage with both English and French as mother tongues: Greater Sudbury, Ontario, 3.4% Highest percentage with a non-official language as mother tongue: Vancouver, British Columbia, 42.6% Highest percentage with an Indigenous language as mother tongue: Thunder Bay, Ontario, 0.8% Lowest percentage with English as mother tongue: Saguenay, Quebec, 0.8% Lowest percentage with French as mother tongue: St. John's, Newfoundland and Labrador, 0.5% Lowest percentage with both English and French as mother tongues: Lethbridge, Alberta, 0.2% Lowest percentage with a non-official language as mother tongue: Saguenay, Quebec, 1.0% Language most often spoken at home

Highest population with English most often spoken at home: Toronto, Ontario, 4,035,545 Highest population with French most often spoken at home: Montreal, Quebec, 2,708,435 Highest population with a non-official language most often spoken at home: Toronto, Ontario, 1,626,995 Highest population with English and French spoken equally at home: Montreal, Quebec, 96,355 Highest population with English and a non-official language spoken equally at home: Toronto, Ontario, 449,840 Highest population with French and a non-official language spoken equally at home: Montreal, Quebec, 96,360 Lowest population with English most often spoken at home: Drummondville, Quebec, 845 Lowest population with French most often spoken at home: Kamloops, British Columbia, 195 Lowest population with a non-official language most often spoken at home: Saguenay, Quebec, 705 Lowest population with English and French spoken equally at home: Chilliwack, British Columbia, 100 Highest percentage with English most often spoken at home: St. John's, Newfoundland and Labrador, 96.9% Highest percentage with French most often spoken at home: Saguenay, Quebec, 98.4% Highest percentage with a non-official language most often spoken at home: Vancouver, British Columbia, 27.8% Highest percentage with English and French spoken equally at home: Montreal, Quebec, 2.3% Highest percentage with English and a non-official language spoken equally at home: Toronto, Ontario, 7.3% Highest percentage with French and a non-official language spoken equally at home: Montreal, Quebec, 2.3% Lowest percentage with English most often spoken at home: Saguenay, Quebec, 0.6% Lowest percentage with French most often spoken at home: Abbotsford-Mission, British Columbia, 0.2% Lowest percentage with a non-official language most often spoken at home: Saguenay, Quebec, 0.4% Lowest population with English and French spoken equally at home: St. John's, Newfoundland and Labrador, 0.1%