Vietnam is located in Southeast Asia, on the eastern coast of the Indochinese Peninsula. Vietnam is bordered by China, Laos, Cambodia, and the South China Sea. Hanoi is the capital, and Ho Chi Minh City (formerly Saigon) is the largest city. Vietnam is a long and narrow country, extending over 1,000 miles between the northern and southern borders, and has a wide variety of terrain. The population of Vietnam is predominantly rural, and in 1997, only 20 percent lived in urban areas. Vietnam has approximately 50 ethnic and language groups, but ethnic Vietnamese constitute the majority of the population. Vietnam's climate is primarily hot and humid. Seasonal variations are slight, and generally determined by the wet and dry season. The rainy season varies depending on the region you are in. The population in 1998 was over 76 million people, approximately 90 percent of those being ethnic Vietnamese. The majority of the population recognizes Buddhism as their religion, and speaks Vietnamese.