A combined almost 1,000 acres were listed for sale in Kent County, Delaware, recently; the overall value of all Kent County land for sale was nearly $140 million. Kent County ranks second in the Diamond State based on the total amount of acres of land for sale among the three counties in the Diamond State. Of all farms, rural land, hunting land and other land for sale in Kent County, Dover had the most land for sale. Kent County is one of the ten largest counties in Delaware (798 square miles). It's located in the Central Delaware region of the state.