Deer Grove, Illinois Area Code
Deer Grove, IL is officially utilizing an area code overlay in which area codes 779 and 815 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Deer Grove, IL area code information read more about area codes 779 and 815 details and Illinois area codes.
Deer Grove, IL is located in Whiteside County and observes the Central Time Zone.
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