<i>As of October 2013 Google+ had 300 million monthly active “in-stream” users who see or visit the Google+ stream of content, according to Marketing Land. Google has not provided Google+ usage metrics since then.</i><p>The current numbers must be down in the single digit millions by now. I don't know anyone who uses Google+ anymore (only a handful of people I know ever used it at all, compared to the hundreds of people I know on Facebook).