Chesterton, IN

ZIP code 46304 serves Chesterton in Porter County, northwestern Indiana, near Lake Michigan. Notable landmarks include Indiana Dunes State Park, with its beaches, dunes, and trails; parts of Indiana Dunes National Park, including the historic Bailly Homestead and Chellberg Farm; and the Coffee Creek Watershed Preserve. The ZIP code also includes Chesterton’s downtown, with local shops and civic buildings.