World Population

World Population Age Structure Differs Significantly Between 1970 and 2014

In 1970, just under one-half (48 percent) of the world’s population was younger than 20, a nearly equal percentage was ages 20 to 64, and only 5 percent was 65 and older. Today, as a result of lower fertility rates and longer life expectancy, the share of global population under age 20 has dropped to about 35 percent, the population between ages 20 and 64 represents 58 percent, and ages 65 and older represent 7 percent.