Ingleside is an unincorporated community in Lake County, Illinois, United States.

Notable locations include the Old Grant Township Hall (home of the Grant Township Museum), the Long Lake Dam and the Fox Lake bike trail.

They are on display at the Lakes Region Historical Society Museum, in Antioch.

Ingleside is served by Metra commuter train's Milwaukee District North Line connecting to downtown Chicago.

As of the 2000 United States Census,[2] there were 9,286 people living in the village.