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 specifics: In the 2010 census, Illinois had a reported population of 12,831,574. The Land of Lincoln slowly clawed its way up to 12,879,505 in mid-2013, but now is down to 12,801,539 after losing more than 37,500 people in the past year. The loss here is the biggest of any state.