Bolingbrook is a village in Will and DuPage counties in the U.S. state of Illinois. It is a southwest suburb of Chicago on I-55 and Historic Route 66. The village was a new town built on the Gateway Wetlands west of the Des Plaines River in the 1960s. Bolingbrook experienced rapid growth in the 1980s and 1990s, eventually becoming Will county's second largest town after Joliet. Per the 2020 census, the population was 73,922. As of 2010, it is the 17th largest incorporated place in Illinois and the state's second-largest village.

Will County is a county in the northeastern part of the state of Illinois. According to the 2020 census, it had a population of 696,355, an increase of 2.8% from 677,560 in 2010, making it Illinois's fourth-most populous county. The county seat is Joliet. Will County is one of the five collar counties of the Chicago–Naperville–Elgin, IL–IN–WI Metropolitan Statistical Area. The portion of Will County around Joliet uses area codes 815 and 779, while 630 and 331 are for far northern Will County and 708 is for central and eastern Will County.