Green Grass is located in Dewey County, SD. The population is 31, making Green Grass the 7th largest city in Dewey County.
There are 0 public schools in Green Grass with an average Homefacts rating of NA. , and there are 0 registered sex offenders residing in the city. Unemployment in Green Grass is high and the median home sales price is $0. Detailed and up-to-date Green Grass property reports are available for any property address.
Cities near Green Grass include North Eagle Butte, North Dewey and Eagle Butte.