You may be subject to a limit on some of your itemized deductions if your adjusted gross income is more than $254,200 ($279,650 if head of household, $305,050 if married filing jointly or qualifying widow(er), $152,525 if married filing separately).
Darien, IL City Data - Population, Homes, Statistics. Darien, IL City Data. Darien, IL is a city with great restaurants, attractions, history and people. There are around 22,860 people who live in Darien and approximately 904,161 who live in DuPage County.
The United States Census Bureau estimates that the population of Illinois was 12,802,023 in 2017, moving from the fifth-largest state to the sixth-largest state (losing out to Pennsylvania). Illinois' population declined by 33,700 people from July 2016 to July 2017, making it the worst decline of any state in the U.S. in raw terms.