Onamia is located in Mille Lacs County, MN. The population is 976, making Onamia the 4th largest city in Mille Lacs County.
There are 7 public schools in Onamia with an average Homefacts rating of C-. The total crime rate for Onamia is moderate , and there are 0 registered sex offenders residing in the city. Unemployment in Onamia is low and the median home sales price is $0. Detailed and up-to-date Onamia property reports are available for any property address.
Cities near Onamia include Onamia Township, Bradbury Township and South Harbor Township.