Lisle is a village in DuPage County, Illinois, United States. The population was 22,930 at the 2011 census, and estimated to be 23,135 as of 2008. It is part of the Chicago metropolitan area and the Illinois Technology and Research Corridor. It is also the headquarters of the Nuclear Regulatory Commission Region III.
The people of Lisle are affectionately known as "Lilacs" or "Lileseans." In July 2007, Lisle was ranked #20 in Money magazine's list of "100 Best Places to Live" and #17 on their 2009 list of the "Best Places for the Rich and Single".
In 1830, Bailey Hobson, a Quaker, was the first settler in what would become DuPage County, Illinois, as well as Lisle Township. The town of Lisle was permanently settled in 1832, by brothers James C. Hatch and Luther A. Hatch after the close of the Black Hawk War. The two brothers acquired land near what is now Ogden Avenue and began a small farming community named "DuPage" or "East DuPage" because, of its proximity to the east branch of the DuPage River. To the west of Hatchs' Dupage, the largest and oldest community in the region to become DuPage County was founded in 1831, on the west branch of the DuPage River, by brothers Joseph Naper and John Naper: Naper Settlement, present-day Naperville, Illinois.