Crystal Lake Area Codes

About Crystal Lake Area Codes

The city of Crystal Lake, located in Illinois, is served by 2 telephone area code(s) in this dataset. These calling codes connect residential neighborhoods, business districts, and surrounding communities.

Major phone area codes used in Crystal Lake include 779 and 815. The city falls under the America/Chicago time zone(s), depending on the exact location and provider routing.

List of Area Codes in Crystal Lake, Illinois

The table below lists all telephone area codes used in Crystal Lake, Illinois, along with the associated counties and time zones from this dataset.

ZIP Codes in Crystal Lake, Illinois

Zip code data is not available for this city in the current 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.