With over 175 million inhabitants, Uttar Pradesh is the most populous state in India and is also the most populous country subdivision in the world. Only five countries (the People's Republic of China, India itself, the United States, Indonesia and Brazil) have a higher population. Uttar Pradesh is a very fertile region and a major contributor to the national foodgrain stock. It is also home to 78% of national livestock population. A vast number of tourists visit the Taj Mahal in Agra.