How long do most horses live? Many horses live to be over thirty years old and that seems to surprise people. Now, a thirty-year-old horse isn't. Horses live in every region of the world except Antarctica and the northern Arctic regions of North America, Europe and Asia. Most horses are domesticated. Stream live jumpings and horse competitions around the world or buy videos of memorable competitions from the past. Breed registries for horses that typically produce individuals both under and over Most mares enter an anestrus period during the winter and thus do not cycle in this period. Horse Ownership FAQs Horses Horse Ownership Basics. Horses were historically used in warfare, from which a wide variety of riding and driving techniques developed, using gute tricks different styles of equipment and methods of control. Extreme old age can be hard to verify, however, especially if horses don't have identifying paperwork and have changed owners several times.