Singapore - Chinese gardens by wade.mealing. Facts about Singapore: Area: 699 sq km. One larger and 54 smaller islands off the southern tip of Peninsular Malaysia; strategically located for communications and trade. Singapore is Asia’s cleanest and greenest city. Population: 4,836,691. Capital: Singapore. Official language: Mandarin (Chinese), English, Malay, Tamil Indian. English is the primary language for education. 31 All languages