Population, Midyear 2022: 338,289,857
Population Density (Number of Persons per Square Kilometer): 36.98
Life Expectancy at Birth, 2022: 78.20
Projected Population, Midyear 2030: 352,162,301
Percentage of Total Population Aged 65 and Older, Midyear 2022: 17.13%
Projected Percentage of Total Population Aged 65 and Older, Midyear 2030: 20.53%
Projected Percentage of Total Population Aged 65 and Older, Midyear 2050: 23.63%
Source: United Nations, Department of Economic and Social Affairs, Population Division (2023). Data Portal, custom data acquired via website. United Nations: New York. Accessed 12 May 2023.
Life expectancy at birth, 2021: 76.4 years
Share of the population aged 65 and over, 2021: 16.8%
Share of the population aged 65 and over, 2050: 22.0%
Share of the population aged 80 and over, 2021: 3.7%
Share of the population aged 80 and over, 2050: 8.2%
Adults aged 65 and over rating their own health as good or very good, 2021: 77%
Share of adults aged 65 and over receiving long-term care, 2020: 1.7%
(Note: This only includes recipients of long-term care in institutions.)
Estimated prevalence of dementia per 1,000 population, 2021: 15.5
Estimated prevalence of dementia per 1,000 population, 2040: 23.3
Source: OECD (2023), Health at a Glance 2023: OECD Indicators, OECD Publishing, Paris, doi.org/10.1787/7a7afb35-en.
Population, 2021: 336,998,000
Annual Population Growth Rate, 2020-2030 (%): 0.4%
Life Expectancy at Birth, 2021: 77
Share of Urban Population, 2021: 83%
Annual Growth Rate of Urban Population, 2020-2030 (%): 0.7%
Source: United Nations Children’s Fund, The State of the World’s Children 2023: For every child, vaccination, UNICEF Innocenti – Global Office of Research and Foresight, Florence, April 2023.

Health System Overview
Health System Rankings
Health System Outcomes
Health Expenditures
Health System Financing
Coverage and Access
Costs for Consumers
Health System Resources and Utilization
Preventive Healthcare
World Health Systems Facts is a project of the Real Reporting Foundation. We provide reliable statistics and other data from authoritative sources regarding health systems and policies in the US and sixteen other nations.
Page last updated January 31, 2025 by Doug McVay, Editor.