Located in South New Hampshire, 892-square-mile Hillsborough County is one of the ten biggest counties in the Granite State. A recent survey of Land Network data records nearly 1,000 acres of farms for sale in New Hampshire's Hillsborough County, which is valued at a combined $2 million. The average price of farmland for sale in Hillsborough County was $950,000. Browse all New Hampshire 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 business or lifestyle needs.