Check out this infograph which shows more than 1,500,000 unreached people groups in one North American City.  https://missio-graphics.s3-us-west-2.amazonaws.com/Volume+8/Diaspora-Greater-Toronto-Area.pdf. Do you work in the Toronto area? (Thanks to Missio Nexus for distributing these Missio Graphics without charge. They’re giving this away for free, even to non-members!)