Singapore, officially the Republic of Singapore (; Chinese: , Pinyin: XÄ«njiÄpÅ Gònghéguó; , ), is an island city-state and the smallest country in Southeast Asia. Located at the southern tip of the Malay Peninsula, south of the Malaysian state of Johor and north of the Indonesian Riau Islands, it lies 137 kilometers (85 miles) north of the Equator.