A new report released today by Richard Florida and the Martin Prosperity Institute (MPI) at the University of Toronto’s Rotman School of Management, finds America’s cities and metro areas to be strikingly divided by class. The report, released to the City Lab Conference of Mayors and City Leaders in Los Angeles, maps the stark class divisions within 12 of America’s largest cities and metro areas. Americans, it finds, are not only separated by income and race, but by socio-economic class.