Hayden is a city in Kootenai County, Idaho, United States. The population was 9,159 at the 2000 census. It is the former location of a 20-acre compound for the neo-Nazi, genocidal Aryan Nations white supremacist group. Hayden apartments for rent comparison page shows most up to date rent information on Hayden apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.