The value of all land and rural real estate for sale in Sullivan County, Pennsylvania, recently was almost $8 million, representing a combined 1,234 acres of land for sale in Sullivan County. Sullivan County ranks 63rd out of 67 counties in the Keystone State for the combined amount of land currently advertised for sale. Of all farms, hunting land and other rural land and acreage for sale in Sullivan County, Shunk featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Sullivan County's overall GDP. Sullivan County is Pennsylvania's 50th largest county (452 square miles). It's located in the Northeast Mountains Pennsylvania region of the state.