http://www.pewresearch.org/fact-tank/2015/07/16/are-you-in-the-global-middle-class-find-out-with-our-income-calculator/ http://www.pewresearch.org/fact-tank/201

http://www.pewresearch.org/fact-tank/2015/07/16/are-you-in-the-global-middle-class-find-out-with-our-income-calculator/ http://www.pewresearch.org/fact-tank/2015/07/16/are-you-in-t... $80,000 USD for 4 people is "High Income" globally.