The CDC says one in four high school students now drink soda every day.
However, when other sugary drinks like Gatorade are counted, the figure is closer to two-thirds of high school students drinking a sweetened beverage every day.
Still, that number is down from the 1990s and early 2000s when more than three-quarters of teens were having a sugary drink each day.
The study also found that teens drink water, milk and fruit juices most often.
The study was based on a national survey last year of more than 11,000 high school students.
Consumption of sugary drinks is considered a big public health problem, and has been linked to the U.S. explosion in childhood obesity. One study of Massachusetts schoolchildren found that for each additional sweet drink per day, the odds of obesity increased 60 percent.
As a result, many schools have stopped selling soda or artificial juice to students.
The Associated Press contributed to this story.