YouTube Still Reigns as TikTok Surges Among Teen Social-Media Users, Survey Says

The number of teenagers who say they are chronically online has nearly doubled since 2015, according to a new survey from Pew Research Center that also illustrates how rapidly the competitive landscape for social media is changing.

YouTube is the most popular platform among U.S. teens, with 95% of the coveted demographic saying they use the site or its mobile app, the survey found. ByteDance Ltd.’s video-sharing platform TikTok, which was launched in the U.S. in 2018 and thus didn’t exist the last time Pew performed a similar survey, is now used by about 67% of those between 13 and 17 years old.