The most populous cities in area code 630 are: Roselle, La Grange Park, Naperville, Aurora, and Hinsdale.
Other cities in the 630 area code include: Downers Grove, Elmhurst, Northbrook, Lombard, Oak Brook, Bensenville, Wheaton, West Chicago, Geneva, Saint Charles, Lemont, Itasca, Bartlett, Batavia, Glen Ellyn, Sugar Grove, La Grange, Warrenville, Wood Dale, Wheeling, Oswego, Bolingbrook, Big Rock, Elburn, Chicago, Arlington Heights, Elk Grove Village, Yorkville, Elgin, Maywood, Plano, Summit Argo, and Schaumburg.
Roselle is a village in DuPage County and Cook counties in northeastern Illinois, United States. It was first incorporated in 1922 and is a bedroom community, with residents generally commuting to Chicago or nearby suburbs for their jobs. As a result, the early rural atmosphere of the community has been lost over the past 30 years. As of the 2010 census, the village's population was 22,763. Roselle is a western suburb of Chicago and is part of the Chicago metropolitan area.
La Grange Park is a village in Cook County, Illinois, United States. As of the 2010 census, the village, which is a suburb of Chicago, had a population of 13,579.
Naperville is a city in DuPage and Will counties in the U.S. state of Illinois, and a suburb of Chicago. Naperville was voted the second-best place to live in the United States by Money magazine in 2006. It was rated 1st on the list of best cities for early retirement in 2013 by Kiplinger. In a 2010 study, Naperville was named the wealthiest city in the Midwest and eleventh in the nation with a population over 75,000. It was ranked among the nation's safest cities by USAToday and Business Insider. As of the 2010 census, the city had a population of 141,853, which was estimated to have increased to 147,100 by July 2015. It is the fifth-largest city in Illinois.
The 630 area code lies within the Central Daylight Time Zone (or CDT). The current time in Central Daylight Time is 4:01 AM on Dec 20, 2022.