Lemont, Illinois Area Code

Lemont, IL Area Codes are

630 and 331

Lemont, IL is officially utilizing an area code overlay in which area codes 331 and 630 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to Lemont, IL area code information read more about area codes 331 and 630 details and Illinois area codes.

Lemont, IL is located in Cook County and observes the Central Time Zone.
View our Times by Area Code tool.

Illinois Area Code Map


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