United States of America Population Pyramid 2001

United States of America
2001
Population: 284,279,638

Year

-5 -1   2001  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z
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United States of America in 2001

The population of the United States of America in 2001 was 284,279,638. Over the previous ten years the population grew by 10.8%, up from 256,471,422 in 1991. The median age was 35.5 years, and for every 100 people of working age (15–64) there were 31.5 children under 15 and 18.2 people aged 65 or over. This is a stationary pyramid — similar numbers in each age group up to the older cohorts, the signature of near-replacement fertility.

The bulge of cohorts born between 1946 and 1964 — the post-war baby boom — is the defining feature of the United States pyramid, visible as it moves up the age scale over the decades.

Share of the population by age group, 1950–2100

Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.


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