Ontonagon is located in Ontonagon County, MI. The population is 1,514, making Ontonagon the largest city in Ontonagon County.
There are 1 public schools in Ontonagon with an average Homefacts rating of C+. , and there are 3 registered sex offenders residing in the city. Unemployment in Ontonagon is high and the median home sales price is $0. Detailed and up-to-date Ontonagon property reports are available for any property address.
Cities near Ontonagon include Ontonagon Township, Greenland Township and Rockland Township.