Of 14 counties in the state, Middlesex County is fifth in terms of its size (846 square miles). Middlesex County is in Northeast Massachusetts. Middlesex County, Massachusetts, includes roughly 1,000 acres of equestrian property for sale based on recent Land Network data. The combined market value of farms and rural land for sale here was about $4 million. Browse all Middlesex 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 Middlesex County is residential property.