Facebook users are getting grayer.
Long a hangout for college students, the social-networking giant has morphed into a virtual parlor for the middle-aged, according to a new study.
People 35 to 54 are now the biggest age group on the Web site, accounting for 28.2 percent of all U.S. users as of July, according to iStrategyLabs, an online marketing firm. Following close behind are 24- to 34-year-olds, who represent 25.2 percent of users.
The findings reflect a major evolution at Facebook, which until January was dominated by young adults, some of whom famously festoon their profiles with photos of beer bashes and belly buttons. Although their numbers continue to grow on the service, younger users have been overtaken by their seniors, who are joining at a faster rate.
The 18-to-24 age group accounted for 25.1 percent of users, down from 40.8 percent in January, the study found. Those 17 and under made up 9.8 percent of the Web site's users, down from 13.5 percent.