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Age and Sex Composition: 2020

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Age and Sex Composition: 2020

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Report Number C2020BR-06

A population’s age and sex data reflect both its current composition and changes over time in the characteristics of its people.

The 2020 Census shows the United States continued to grow over the past decade, albeit at a slower pace than in previous decades. At the same time, the U.S. population grew older due to both a decrease in the number of children being born and an increase in the older population. And while females still tended to live longer than males, men saw a larger percent increase at older ages than women.

This report presents key findings from the 2020 Census on the age and sex composition of the U.S. population as well as changes between 2010 and 2020. Information is provided on sex, age, and date of birth questions in the 2020 Census by mode of collection; as well as data quality and privacy protections. Measures and trends are presented for the nation and various subnational geographies, including states, counties, and places.

The data for this report are based on the 2020 Census Demographic and Housing Characteristics File (DHC).

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This report describes the older population of the United States in 2020, with comparisons to the 2000 and 2010 Censuses.
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Page Last Revised - June 6, 2023
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