Of 10 counties in the White Mountain State, Grafton County is second in terms of its size (1,749 square miles). Grafton County is in North New Hampshire. Grafton County, New Hampshire, includes roughly 1,000 acres of farms for sale based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here was roughly $900,000. Browse all Grafton County farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or individual needs. The most common type of land for sale by combined acreage in Grafton County is residential property.