U.S. Census: Illinois sees second-largest population decline

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ROCKFORD, Ill. (WIFR) -- Illinois had the second-largest population decline among U.S. states last year, according to a report from the U.S. Census Bureau.

The population shrank by more than 45,000 residents, second only to New York's decline of 48,150 over the past year. No other U.S. states had their population decrease by more than 12,000.

Illinois's population has decreased each of the past five years, part of a decline of nearly 100,000 residents since 2009. In comparison, the state's decrease over this time period is about two-thirds the size of Rockford's population.

The Illinois Policy Institute says the population drop may be due to income tax increase and fewer births across the state. Some leaders​ are concerned the trends​ may cause Illinois to lose one or two of its 18 seats in U.S. House of Representatives after the 2020 Census.

None of Illinois's neighboring states experienced a population loss over the past year.