There was a combined approximately $174 million of farms and rural land for sale in Grafton County recently on Land.com. The total size of all Grafton County farms and rural land for sale was around 4,000 acres. Grafton County ranks third based on the total acres of land for sale among the 10 counties in the White Mountain State. Littleton featured the most land for sale. Grafton County is one of the ten largest counties in New Hampshire (1,749 square miles). It's located in the North New Hampshire region of New Hampshire.