It’s no surprise that Facebook is still the No. 1 social media platform in the U.S. in 2021. But you might be intrigued to find that Pinterest and LinkedIn also appear in the top five most-used social media sites. And of course, TikTok is rising fast. But even among those under age 34, more people say Facebook is their favorite platform (30%) rather than TikTok (15%). Check out our infographic below for more insights into the state of social media in 2021.