Of 10 counties in the Granite State, Hillsborough County ranks fifth in terms of size (892 square miles). Hillsborough County is in South New Hampshire. There is roughly 1,000 acres of farms for sale in Hillsborough County, New Hampshire, based on recent Land Network data. The combined market value of farms and rural land for sale here is approximately $900,000. Browse all Hillsborough 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 Hillsborough County is residential property.