Chicago Tribune: Chicago area sees greatest population loss of any major U.S. city, region in 2015

The Chicago region in 2015 saw its first population decline since at least 1990, marking the greatest loss of any metropolitan area in the country, according to census data released Thursday.

In 2015 the region lost an estimated 6,263 people, according to the U.S. Census Bureau data. The reason for the decline is clear:

The number of residents leaving the region in 2015 was so large — about 80,000 in all — that it couldn’t be offset by new residents and births, according to census data.

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