It comes as no surprise; Facebook is getting old.

As highlighted in this Business Insider report:

“The aging of Facebook, Twitter, LinkedIn, and even Pinterest is more apparent than ever. That’s especially true of Facebook: Less than two-fifths of Facebook’s adult user base in the US is aged 18 to 34, according to comScore.”

Also of interest:

• Instagram has become the most important and most-used social network for US teens. 32% of US teenagers cited it as their most important social network in Piper Jaffray’s twice-annual teen survey, compared to only 14% saying that of Facebook.
• LinkedIn enjoys high adoption among highly educated and high-income users. LinkedIn is used by 44% of Americans with income of $75,000 or more, according to Pew.

This infographic provides more information. For the full report visit BusinessInsider.com: