Of 10 counties in the Granite State, Rockingham County ranks sixth in terms of size (795 square miles). Rockingham County is in South New Hampshire. Recent listings of farms for sale in New Hampshire's Rockingham County totals about 1,000 acres and a combined market value of almost $600,000. The most common type of land for sale by combined acreage in Rockingham County is residential property. Browse all Rockingham 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 Rockingham County is residential property.