United States of America Population Pyramid 2019
United States of America in 2019
In 2019, the United States of America had a total population of 337,790,067 people. A decade earlier, in 2009, the population was 308,023,454; it has grown by 9.7% since. With a median age of 38.0 years, the United States of America had a youth dependency ratio of 28.3 and an old-age dependency ratio of 23.8 per 100 people of working age. The near-vertical sides of the pyramid indicate a stationary age structure, with births roughly balancing the passage of cohorts into older age.
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.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
