Back in June, 2013 WPEngine participated in a session at WordCamp Chicago that was filled with WordPress statistics and trends. The results from that survey have now been published as an infographic. I think the most impressive stat is that there is one WordPress site for every 101 people in the world. According to the graphic, that’s essentially the population of Shanghai, Mumbai, Moscow, Mexico City, Tokyo, New York City, London, and Los Angeles combined.
If you’re interested in more statistics, Matt Mullenweg conducted a survey shortly before WordCamp San Francisco 2013 and shared the results in his State Of The Word presentation.