Located in South New Hampshire, 795-square-mile Rockingham County is one of the ten biggest counties in the Granite State. Rockingham sits on the southeast "Seacoast" region of the state, covering some of the more developed areas between Manchester and Portsmouth on the Atlantic Coast. Browse all Rockingham County horse farms for sale on the Land Network to find the equestrian property that's right for your future needs, whether you're a horse breeder, equestrian business or simply horse lover looking for stable facilities, grooming pens or grazing pasture for your own horses. The most common type of land for sale by combined acreage in Rockingham County is house.