What Percentage of the Population Are Teenagers?

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As of 2012, U.S. Census Bureau statistics indicate children between the ages of 10 and 19 make up 13.5 percent of the population. The U.S. Census Bureau groups children age 10 to 14 together and children age 15 to 19 together.

In 2012, the U.S. population was approximately 309 million. About 20.6 million, or 6.6 percent, are children in the 10 to 14 age range, and 21.2 million, or 6.9 percent, are in the 15 to 19 age range. The margin of error is near 30,000. As of 2012, another 40 million children are newborn to age 9, which is about 13 percent of the population.

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