The value of all farms, rural land, hunting land and other land for sale in Pennsylvania's Adams County recently was almost $112 million, representing a combined 1,497 acres of land for sale in Adams County. Adams County ranks 21st out of 67 counties in Pennsylvania for the total acreage of land currently advertised for sale. Of all farms, rural land, hunting land and other land for sale in Adams County, Gettysburg featured the most land for sale. Adams County is Pennsylvania's 45th biggest county (521 square miles). It's located in the Dutch Country Roads Pennsylvania region of Pennsylvania.