Lake County Area Codes

About Lake County Area Codes

The county of Lake County, located in Illinois, is served by 2 telephone area code(s) in this dataset. These calling codes cover cities, suburbs, and unincorporated communities across the county.

Major phone area codes used in Lake County include 224, 847. The county mainly follows the America/Chicago time zone.

Cities and towns served by these area codes in Lake County include Buffalo Grove, Gurnee, Highland Park, Lake Forest, Libertyville, Mundelein, North Chicago, Round Lake Beach, Vernon Hills, Waukegan, Zion.

List of Area Codes in Lake County, Illinois

The table below lists all telephone area codes used in Lake County, Illinois, along with their associated cities and time zones from this dataset.

Related Area Code Pages

Explore related area code resources on Burning Compass:

• All area codes in Illinois
• Individual area code details are available from the table above.