Hayden Lake is a city in Kootenai County, Idaho, United States. The population was 494 at the 2000 census. From 1970 until 2001, the headquarters of the Neo-Nazi organization Aryan Nations, was at the Lake, but the property has since been acquired by North Idaho College who turned it into a 'peace park.' Hayden Lake apartments for rent comparison page shows most up to date rent information on Hayden Lake apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.