Statistics Canada conducts a country-wide census that collects demographic data every five years on the first and sixth year of each decade. The 2021 Canadian census enumerated a total population of 36,991,981, an increase of around 5.2 percent over the 2016 figure. It is estimated that Canada's population surpassed 40 million in 2023 and 41 million in 2024. Between 1990 and 2008, the population increased by 5.6 million, equivalent to 20.4 percent overall growth. The main driver of population growth is immigration. Between 2011 and May 2016, Canada's population grew by 1.7 million people, with immigrants accounting for two-thirds of the increase.
Human life expectancy is a statistical measure of the estimate of the average remaining years of life at a given age. The most commonly used measure is life expectancy at birth. This can be defined in two ways. Cohort LEB is the mean length of life of a birth cohort and can be computed only for cohorts born so long ago that all their members have died. Period LEB is the mean length of life of a hypothetical cohort assumed to be exposed, from birth through death, to the mortality rates observed at a given year. National LEB figures reported by national agencies and international organizations for human populations are estimates of period LEB.
The United States had an official estimated resident population of 334,914,895 on July 1, 2023, according to the U.S. Census Bureau. This figure includes the 50 states and the District of Columbia but excludes the population of five unincorporated U.S. territories as well as several minor island possessions. The United States is the third most populous country in the world, and the most populous in the Americas and the Western Hemisphere. The Census Bureau showed a population increase of 0.4% for the twelve-month period ending in July 2022, below the world average annual rate of 0.9%. The total fertility rate in the United States estimated for 2022 is 1.665 children per woman, which is below the replacement fertility rate of approximately 2.1.
Canada is divided into 10 provinces and three territories. The majority of Canada's population is concentrated in the areas close to the Canada–US border. Its four largest provinces by area are also its most populous; together they account for 86.5 percent of the country's population. The territories account for over a third of Canada's area but are home to only 0.32 percent of its population, which skews the national population density value.
British Columbia is a Canadian province with a population of about 5.6 million people. The province represents about 13.2% of the population of the Canadian population. Most of the population is between the ages of 15 and 49. About 60 percent of British Columbians have European descent with significant Asian and Aboriginal minorities. Just under 30% of British Columbians are immigrants. Over half of the population is irreligious, with Christianity and Sikhism being the most followed religions.
Ontario, one of the 13 provinces and territories of Canada, is located in east-central Canada. It is Canada's most populous province by a large margin, accounting for nearly 40 percent of all Canadians, and is the second-largest province in total area. Ontario is fourth-largest in total area when the territories of the Northwest Territories and Nunavut are included. It is home to the nation's capital city, Ottawa, and the nation's most populous city, Toronto.
Prince Edward Island is a Canadian province. According to the 2011 National Household Survey, the largest ethnic group consists of people of Scottish descent (39.2%), followed by English (31.1%), Irish (30.4%), French (21.1%), German (5.2%), and Dutch (3.1%) descent. Prince Edward Island is mostly a white community and there are few visible minorities. Chinese people are the largest visible minority group of Prince Edward Island, comprising 1.3% of the province's population. Almost half of respondents identified their ethnicity as "Canadian." Prince Edward Island is by a strong margin the most Celtic and specifically the most Scottish province in Canada and perhaps the most Scottish place (ethnically) in the world, outside Scotland. 38% of islanders claim Scottish ancestry, but this is an underestimate and it is thought that almost 50% of islanders have Scottish roots. When combined with Irish and Welsh, almost 80% of islanders are of some Celtic stock, albeit most families have resided in PEI for at least two centuries. Few places outside Europe can claim such a homogeneous Celtic ethnic background. The only other jurisdiction in North America with such a high percentage of British Isles heritage is Newfoundland.
The 2021 Canadian census was a detailed enumeration of the Canadian population with a reference date of May 11, 2021. It follows the 2016 Canadian census, which recorded a population of 35,151,728. The overall response rate was 98%, which is slightly lower than the response rate for the 2016 census. It recorded a population of 36,991,981, a 5.2% increase from 2016. It will be succeeded by Canada's 2026 census.
