The ethnic composition of Singapore citizens is mainly Chinese, at 76.8% of the population, with a smaller presence of Malays (13.9%) and Indians (7.9%) Mandarin, English, Malay and Tamil are the four official languages, but the primary medium of instruction in schools and the language of business in Singapore is English. Due to its relatively small size, Singapore is completely urbanized, with 100% of the population living in urban areas