Cambodia has a land area of 181,035 square kilometers in the southwestern part of the Indochina peninsula, about 20 percent of which is used for agriculture. It lies completely within the tropics with its southern most points slightly more than 10° above the Equator. The country capital city is Phnom Penh. International borders are shared with Thailand and the Lao People’s Democratic Republic on the West and the North, and the Social Republic of Viet Nam on the East and the Southeast. The country is bounded on the Southeast by the Gulf of Thailand.