North Chicago, Illinois, is a city located in Lake County, situated along the shores of Lake Michigan. It is part of the Chicago metropolitan area and has a diverse population. The city is known for its proximity to several military and healthcare facilities, including the Naval Station Great Lakes, which is the largest military training installation in the United States. The city covers an area of approximately 5.5 square miles and has a mix of residential, commercial, and industrial zones. North Chicago is served by several public transportation options, making it accessible to nearby cities. The community offers various parks and recreational facilities for residents and visitors alike.