Joliet, IL is currently served by one area code which is area code 708. Area code 708 was created from a split of area code 312 in 1989.
In addition to Joliet, IL area code 708 serves the southern suburbs of Chicago including the larger cities and communities of larger Berwyn, Blue Island, Burbank, Calumet City, Chicago Heights, Cicero, Dolton, Elmwood Park, Evergreen Park, Harvey, Lansing, Maywood, Melrose Park, Oak Forest, Oak Lawn, Oak Park, Orland Park, Park Forest, South Holland and Tinley Park, in addition to many smaller communities.
Joliet, IL is located in Will County and observes the Central Time Zone.
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