The 224 area code covers northeastern Illinois, including Elgin, Waukegan, Arlington Heights and more.
Illinois Counties within Area Code 224:
Cook, Lake, Kane, McHenry.
Illinois Major Cities within Area Code 224:
Elgin, Waukegan, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Mount Prospect, Hoffman Estates, Glenview, Buffalo Grove, Carpentersville, Wheeling, Park Ridge, Northbrook, Elk Grove Village, North Chicago, Gurnee, Mundelein, Algonquin, Niles, Highland Park, Round Lake Beach, Lake in the Hills, Wilmette, Vernon Hills, Huntley, Zion, Rolling Meadows, Morton Grove, South Elgin, Grayslake, Libertyville, Lake Zurich, Lake Forest, Round Lake, Cary, Deerfield, Franklin Park, Prospect Heights, Lindenhurst, Antioch, Beach Park, Wauconda, Lincolnwood, Winnetka, Schiller Park, Barrington, Gages Lake.
Area Code 224 Time Zone?
Central time zone is also known as America/Chicago.