United States of America Population Pyramid 2027
United States of America in 2027
By 2027, the population of the United States of America is expected to reach 350,728,355. Ten years before, in 2017, the projected population is 332,204,659 — 5.6% lower. The median age is projected at 39.9 years, with 26.1 children under 15 and 30.1 people aged 65 or over for every 100 people of working age (15–64). The pyramid is constrictive: cohorts of children are smaller than those of their parents, reflecting low fertility and an ageing population.
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.





