733 square kilometers including reclaimed land

Photo from Wikimedia Commons
Singapore
The city-state island at the southern tip of the Malay Peninsula/Islands
Singapore is a city-state comprising one main island and 63 satellite islands at the southern tip of the Malay Peninsula. The main island is about 50 km east-west and 27 km north-south, covering 733 square kilometers (and growing through extensive land reclamation, which has added about 25% more area since independence in 1965). Despite its tiny size, Singapore is one of the world's most important financial centers, busiest ports, and most densely populated countries, with 5.9 million people.
Measurements
Maximum length of main island
Maximum width of main island
Above sea level
All islands combined
About 150 km2 added since 1965