Percent children - country data from around the world:
The average for 2015 was 27.81 percent.
The highest value was in Niger: 50.47 percent and the lowest value was in Hong Kong: 11.96 percent.
Below is a chart for all countries where data are available for: Percent children.
World bank definition: Population between the ages 0 to 14 as a percentage of the total population. Population is based on the de facto definition of population.