Relevant Facebook Statistics at one place. Updated on July 21, 2016.

Parameter Statistics As of Date Source
Users
Monthly Active Users 1.65 billion 31-Mar-2016 Facebook
Average Daily Active Users 1.09 billion March 2016 Facebook
Mobile Monthly Active Users 1.51 billion 31-Mar-2016 Facebook
Mobile Daily Active Users 989 million March 2016 Facebook
Number of Employees 13,598 31-Mar-2016 Facebook
Finances
Total Revenue $17.928 billion 2015 Facebook
Advertising Revenue $17.08 billion 2015 Statista
Share of Mobile Advertising Revenue 77% 2015 Statista
Average Revenue Per User $10.73 2015 Statista