Facebook Growth By Age Group: Share of College-Age Users is Declining

With the U.S. now accounting for only about a third of all Facebook users, we are starting to see a gradual shift away from its original demographic of college-age users (18-25): 46% of all users are 18-25 years old, down from 51% in late May. The number of users in the 18-25 segment is growing, but at a slower pace than the other age groups. Among the major Facebook age segments, the fastest growing are teens (13-17) and young (26-34) to middle-age (35-44) professionals, with the growth in teens driven by non-U.S. markets. Also note the strong growth in the much smaller 45-54 and 55-59 age groups:

In the U.S., 51% of Facebook users are 18-25 years old, down from 59% in late May. But when one looks at other large and/or fast-growing Facebook markets, the share of the 18-25 age group is less than 50% in most of them:

And a breakdown of where all these new users are based out of..