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The top 20 countries with the largest percentage of older adults and with the largest number of older adults.

Where should college students be counted in the 2020 Census? Census Bureau officials say students living away from home should be counted at their on-campus or off-campus college address, even if coronavirus has temporarily sent them to stay with their parents or elsewhere.

Our widely referenced World Population Data Sheet has been produced annually since 1962. Among the key findings are that Europe and Asia are aging rapidly, while Africa is home to the world’s largest youth population.

Areas with the oldest populations are likely at risk of higher rates of severe illness or death from COVID-19 than those with younger populations.

The U.S. Constitution mandates that a census be taken every 10 years to count all people—both citizens and noncitizens—living in the United States.

Our Population Bulletin, “Aging in the United States,” examines recent trends and disparities among adults ages 65 and older, and how baby boomers born between 1946 and 1964 are reshaping America’s older population