How many people in America under 18 years of age?

Answer 1

In 2016, the estimated total population was 323,127,513 and the population of those under 18 years of age was estimated to be 22.8%. That would mean in 2016 around 73,673,073 people in the United States were under 18 years old.

Answer 2

Approximately 74,294,000. A little over 23% of the US population.

Answer 3

As of 2021, there are approximately 73.1 million people in America under 18 years of age. This represents around 22% of the total population in the country.