It?s common knowledge that Facebook is the dominant social network in terms of user base, but a new report from Pew Research Center showed just how dominant it is.
Pew surveyed 1,520 U.S. adults for its Social Media Update 2016, and it found that 79 percent of online Americans use Facebook, more than doubling Instagram (32 percent), Pinterest (31 percent), LinkedIn (29 percent) and Twitter (24 percent).

Factoring in non-internet users in the U.S., 68 percent of all adults are Facebook users, again more than doubling Instagram (28 percent), Pinterest (26 percent), LinkedIn (25 percent) and Twitter (21 percent).
Pew also found that Facebook use is climbing among senior citizens, with 62 percent of online users aged 65 and up on the social network, up from 48 percent in 2015. Women use Facebook at a higher rate than men, at 83 percent of female internet users versus 75 percent of male internet users.

As for the other social networks in the study:

Instagram: 59 percent of adults aged 18 through 29 use the Facebook-owned photo- and video-sharing network, more than double the 33 percent of those aged 30 through 49 and more than seven times the rate of those 65 and up (8 percent). Female internet users were more likely to be on Instagram than males, at 38 percent and 26 percent, respectively.
Twitter: 36 percent of online adults aged 18 through 29 are on Twitter, more than triple the 10 percent of those 65 and older. 29 percent of internet users with college degrees use Twitt...