The latest U.S. Census Bureau reported a dubious distinction for Cook County
loss with over 10,000 fewer residents in 2015 than just a year before.
Headlines suggest that unchecked violence, rising taxes, out-of-control
politics and failing schools are causing Chicagoans to wave goodbye, but a
look at the demographics shows that larger forces are also at work, like
slowing immigration, density-stifling zoning laws and an aging population.
...... http://chicagotonight.wttw.com/2016/03/29/why-second-city-first-population-loss
Population (2014)
• County 5,246,456 https://en.wikipedia.org/wiki/Cook_County,_Illinois