Porcupine is located in Shannon County, SD. The population is 950, making Porcupine the 3rd largest city in Shannon County.
There are 2 public schools in Porcupine with an average Homefacts rating of D-. , and there are 11 registered sex offenders residing in the city. Unemployment in Porcupine is low and the median home sales price is $0. Detailed and up-to-date Porcupine property reports are available for any property address.
Cities near Porcupine include East Shannon, Manderson White Horse Creek and Wounded Knee.