Fig. 1.7  U.S "baby boomers" at different years, 2000-2020






Also see:

“United States Population by Age and Sex”                           


Use the slider to change the years from 2010 to 2019. Note the “baby boomer” bulge at ages 44-64 in 2010 moves upward as that population cohort ages. Simultaneously, birth rates decline, as shown by narrowing of the base of the pyramid. Thus, the proportion elders in the total population will remain high and then grow.


Also see:

The moving graph shows the age distribution of people making up the U.S. Population at different years from 1900 to 2060. There are relatively very few older people at first. Note the “baby boom” bump forming at the left as births increase dramatically at 1945. High birth rate continue until bump is complete by 1965 as birth rates decline. As the people making up the “baby boom” bump age with passing years, the bump moves to the right. Even as the bump fades at 2020, it has produced a dramatic increase in the proportion of elders in the population. That increase remains for years after 2025.

This same moving graph is at the following URLs.


US Census Bureau 2020 census information is at US Census Bureau Reports - 2020 and 2017 .


©  Copyright 2020: Augustine G. DiGiovanna, Ph.D., Salisbury University, Maryland
The materials on this site are licensed under CC BY-NC-SA 4.0

This license requires that reusers give credit to the creator. It allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, for noncommercial purposes only. If others modify or adapt the material, they must license the modified material under identical terms.
Previous print editions of the text Human Aging: Biological Perspectives are © Copyright 2000, 1994 by The McGraw-Hill Companies, Inc. and 2020 by Augustine DiGiovanna.
View License Deed | View Legal Code