83251 is zip code located in Mackay, Idaho. The population is 1,210, making 83251 the largest zipcode in Mackay and the 2nd largest in Custer County.
There are 2 public schools in 83251 with an average Homefacts rating of A. , and there are 2 registered sex offenders residing in the zip code 83251. Unemployment in 83251 is low.