Of 67 counties in the Sunshine State, Saint Johns County is 36th in terms of its size (821 square miles). Saint Johns County is in Northeast Florida. Recent Land Network data includes almost 1,000 acres of horse farms for sale in Florida's Saint Johns County, which is valued at a combined $3 million. Browse all Saint Johns 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 Saint Johns County is house.