The document is a study from Edison Research on social media usage in the United States. It provides data from telephone surveys, online surveys, and interviews on social media brand awareness, usage, composition of users, and core social media platforms. Some of the key findings include: Facebook usage among U.S. 12+ population declined from 67% in 2017 to 61% in 2019, with larger declines among younger users; Instagram and Snapchat usage rose among 12-34 year olds; and Facebook remains the most often used social media brand, chosen by 52% of social media users in 2019.