Timmy Huynh

Income segregation has increased over the past 30 years in 27 of the 30 largest U.S. metro areas. There were clear divisions between low-income and middle- and upper-income areas, as well as along racial lines.

While either Christians or Muslims make up the largest religious group in nine-in-ten nations around the globe, the religiously unaffiliated rank second in size in most of the Americas and Europe, as well as in many countries in sub-Saharan Africa.