As of April 4, 2012, there have beenwere 16,496 registered users toon MathOverflow,<ref name=MO>{{official website|http://www.mathoverflow.net}}</ref> most of whom havewere beenlocated in the United States (35%), India (12%), and the United Kingdom (6%). More recently, byBy December 11, 2018, the number of registered users hashad grown to 87,850.<ref>{{cite web |url = http://www.sharenator.com/w/mathoverflow.net |title = Sharenator MO Statistics |deadurl = yes |archiveurl = https://archive.is/20120909064947/http://www.sharenator.com/w/mathoverflow.net |archivedate = 2012-09-09 |df = }}</ref> SoAs farof June 2019, 98103,441308 questions have been posted.
In 2011, or about one for every registered member. Questionsquestions arewere answered an average of 3.9 hours after they arewere posted, and "Acceptable" answers taketook an average of 5.01 hours.<ref>{{cite web |url = http://www.mathcs.emory.edu/~dzb/slides/MO_slides.pdf |author = David Zureick-Brown |title = MathOverflow (presentation slides) |date = 29 March 2011 }}</ref>
