Nepal officially the Democratic Republic of Nepal, is a landlocked sovereign state located in South Asia. With an area of 147,181 square kilometers (56,827 sq mi) and a population of approximately 30 million (and nearly 3 million absentee workers living abroad), Nepal is the world's 93rd largest country by land mass and the 41st most populous country. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India. Specifically, the Indian states of Uttarakhand, Uttar Pradesh, Bihar, West Bengal, and Sikkim border Nepal, while across the Himalayas lies the Tibetan Autonomous Region. Kathmandu is the nation's capital and largest metropolis.