Singapore, officially the Republic of Singapore, is a sovereign country as well as a city-state. It is at the southern end of the Malay Peninsula in Asia, between the Straits of Malacca and the South China Sea. Singapore is about one degree of latitude () north of the equator. About 5.70 million people live in Singapore. About 3.31 million are citizens. Most of them are ethnically Chinese, Malay, or Indian, as well as a smaller number of other Asians.