Until recent times, Jacobs were kept at only a few large estates in England and thought to be in danger of extinction, but they are making a comeback. The Jacob is classified as a "rare" breed by the American Livestock Breeds Conservancy.
Kuni viimase ajani, Jacobs hoiti vaid üksikud suured mõisad Inglismaal ja arvatavasti väljasuremisohus, kuid nad teevad comeback.Jacob on klassifitseeritud "harv" tõug, mida Ameerika loomatõud loodushoid.