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Age and Sex

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Age and Sex

Understanding a population’s age and sex composition yields insights into changing phenomena and highlights future social and economic challenges.

Featured

Publication

Centenarians: 2020

September 22, 2025

The report provides an updated portrait of the centenarian population in the United States based on the 2020 Census.
America Counts Story

An Aging U.S. Population With Fewer Children in 2020

May 25, 2023

The age profiles of states and communities don’t always mirror the national picture.
Visualization

How Has Our Nation's Population Changed?

May 25, 2023

See how the total population and race and ethnicity groups have changed over time for the nation, states, metropolitan areas, micropolitan areas, and counties.
Publication

Age and Sex Composition: 2020

May 25, 2023

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.

News

Press Release

2010-2020 Intercensal Estimates by Demographics

September 30, 2025

The U.S. Census Bureau today released the 2010-2020 Intercensal Estimates by demographic characteristics.
Press Release

New Foreign-Born Data Tables Now Available

September 29, 2025

The U.S. Census Bureau released new data tables on the foreign-born population by generation from the 2024 CPS ASEC.
Stats for Stories

National Manufacturing Day: October 3, 2025

September 23, 2025

The U.S. Census Bureau joins organizations across the country celebrating the importance of the manufacturing sector of the nation’s economy.

America Counts

America Counts Story

Childlessness on the Rise — Except for Women Ages 45 to 50

September 23, 2025

From 2014 to 2024, the share of older mothers rose as fewer teens and women in their 20s and 30s had children.
America Counts Story

Most Young Adults Had Not Reached Key Milestones of Adulthood in 2024

August 05, 2025

Less than 25% of 25- to 34-year-olds lived outside their parental home, worked, were married and had kids in 2024, down from almost half in 1975.
America Counts Story

States With High Median Ages May Not be as Uniformly Old as You Think

June 26, 2025

A state’s median age does not tell the whole story. Florida has the fifth highest median age yet also has counties younger than the national median.
America Counts Story

An Aging Nation: U.S. Median Age Surpassed 39 in 2024

June 26, 2025

Median age rose in 85% of the nation’s 387 metro areas from 2020 to 2024 and was higher than the national median of 39.1 in almost half of metro areas.

Visualizations

Visualization

Health Insurance in the United States: 2024 - Visualizations

September 09, 2025

These visualizations presents statistics on health insurance coverage in the United States.
Infographic

Women's History Month: 2025

May 01, 2025

Women-owned employer businesses in the United States.
Visualization

Veterans Day

October 16, 2024

This visualization shows the percentage of veteran population by service periods.
Visualization

Health Insurance in the United States: 2023 - Visualizations

September 10, 2024

These visualizations presents statistics on health insurance coverage in the United States.

Publications

Publication

Centenarians: 2020

September 22, 2025

The report provides an updated portrait of the centenarian population in the United States based on the 2020 Census.
Publication

The Foreign-Born Population in the United States: 2022

April 09, 2024

This report provides an overview of the foreign-born population residing in the United States, highlighting select demographic and socioeconomic characteristics
Publication

Age and Sex Composition: 2020

May 25, 2023

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.

All Subtopics Within 'Population'

Age and Sex

Focusing on a population’s age and sex composition is one of the most basic ways to understand population change over time.
Ancestry

Ancestry refers to a person’s ethnic origin or descent, "roots," or heritage, or the place of birth of the person or the person’s parents or ancestors.
Children

All Census Bureau demographic surveys collect information about children. The information collected varies.
Computer and Internet Use

The U.S. Census Bureau has been collecting data on computers and Internet use sporadically since 1984.
Foreign-Born

The foreign-born population includes anyone who is not a U.S. citizen at birth, including those who have become U.S. citizens through naturalization.
Hispanic Origin

People who identify with the terms “Hispanic” or “Latino” are those who classify themselves in one of the specific Hispanic or Latino categories.
International

The U.S. Census Bureau conducts demographic, economic, and geographic studies of other countries and strengthens statistical development around the world.
Language Use

Language use, English-speaking ability, and linguistic isolation data are collected in the ACS.
Migration/Geographic Mobility

Migration and geographic mobility both refer to the movement of people within and across boundaries, such as county or state lines.
Older Population and Aging

Detailed information and statistics on population older population and aging.
Population Estimates

Annual estimates for the U.S., states, counties, cities, etc. Components of population change (births, deaths and migration) for U.S., states and counties.
Population Projections

The Population Projections Program produces population estimates for future dates. Projections include assumptions about future births, deaths, and migration.
Race

The data on race and ethnicity were derived from answers to the question on race and ethnicity that was asked of individuals in the United States.
Racial and Ethnic Diversity

The concept of racial and ethnic diversity refers to the representation and relative size of different racial and ethnic groups within a population.
Veterans

The U.S. Census Bureau currently collects data on veterans of the Armed Forces using the ACS, CPS, and SIPP.