By Ruochen Shi
September 28, 2015
U.S. Population Pyramid and Growth Movement.
In 2010, the number of population between 40-50 is higher than other ranges. In 2015, however, the number of population between 45-55 is the highest, which shows the general longevity level has been increased during this five years.
Additionally, according to the “United States Population Growth by Region”, total population in U.S. kept growing during last ten years. Simultaneously, population in Northeast, Midwest, West, and South also kept growing.
chart 2-United States population growth by region