3 bedroom homes for sale in Keystone, SD

Keystone is located in Pennington County, South Dakota. There are roughly 38 residents, living in 17 households. The average temperature for Keystone this time of the year is low of 52F and high of 82F. On average, Keystone gets about 2.94 inches of precipitation in July. Most residents are home owners (67%), have a post secondary degree (59%) and are single, no kids (38%).