State Line is a city in Kootenai County, Idaho, United States. The population was 28 at the 2000 census. The city is known more for its honky tonk and its strip club, which attract business from nearby Spokane, Washington and Coeur d'Alene, Idaho. State Line apartments for rent comparison page shows most up to date rent information on State Line apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.