Cairo is the fastest growing city by population

Our breeding skills have beat out the Chinese. Internal migration might have something to do with it too. Either way: Cairo is expected to be the fastest growing city in the world by population, according to Euromonitor International's Global Economies and Consumers in 2017 report (pdf). Cairo’s population is expected to grow by another 500K people this year alone. The capital city’s population reached 22.9 mn as of June 2016, according to CAPMAS. The population growth rate has beat out Shanghai, which is expected to see 400K new inhabitants this year. Alex should see another 100K people in 2017, according to the report.