Westville is a town in New Durham Township, LaPorte County, Indiana, United States. The population, as of the 2020 census is 5257. It is included in the Michigan City, Indiana-La Porte, Indiana Metropolitan Statistical Area. Westville is located in Northwest Indiana, also known as The Region.

LaPorte County is a county located in the U.S. state of Indiana. As of 2020, the population was 112,417. The county seat is the city of La Porte, and the largest city is Michigan City. This county is part of the Northwest Indiana and Michiana regions of the Chicago metropolitan area. The LaPorte County Courthouse is located in the county seat of La Porte and is listed on the National Register of Historic Places.