what county is arden hills mn in
Arden Hills, MN. Online Offers. Arden Hills is a city in Ramsey County, Minnesota, United States. The population was 9,552 at the 2010 census. Bethel University and Seminary is located in the city of Arden Hills. Also, the campus of Northwestern College is partially in Arden Hills. The headquarters of Catholic Aid Association, a fraternal benefits society, and Land o' Lakes are located here as well.