Hobart is a city in Lake County, Indiana, United States. The population was 29,752 at the 2020 census, up from 29,059 in 2010. It has been historically primarily residential, though recent annexation has added a notable retail corridor to the city.

Lake County is a county located in the U.S. state of Indiana. In 2020, its population was 498,700, making it Indiana's second-most populous county. The county seat is Crown Point. The county is part of Northwest Indiana and the Chicago metropolitan area, and contains a mix of urban, suburban and rural areas. It is bordered on the north by Lake Michigan and contains a portion of the Indiana Dunes. It includes Marktown, Clayton Mark's planned worker community in East Chicago.