Mackay is located in Custer County, ID. The population is 530, making Mackay the 2nd largest city in Custer County.
There are 2 public schools in Mackay with an average Homefacts rating of A. , and there are 0 registered sex offenders residing in the city. Unemployment in Mackay is low and the median home sales price is $0. Detailed and up-to-date Mackay property reports are available for any property address.
Cities near Mackay include Lost River, Moore and Arco.