Facebook is the biggest of all the social networks, by far, based on just about every measure. In this post, we lay out 47 current Facebook statistics—updated for 2021 that prove this enormous platform is still a must for marketers in almost every sphere. Facebook has an advertising audience of 2.14 billion. That’s the number of people Facebook reports can be reached with ads on its platform. It’s an increase of 45 million users since 2020.