The company has expanded worldwide with factories around the globe but many products are still made in the U.S.A. such as the Series X700 tractors. John Deere is based in Horicon, Wisconsin. The original site is Grand Detour, Illinois. Take a trip there and walk where John Deere walked, and lived, and invented the world-famous plow. When you tour the John Deere Historic Site, you can experience what life must have been like in 1837. Take in the home John Deere built and an archaeological exhibit that shows the actual site of John Deere’s original blacksmith shop.