Singapore is 5.6 times larger than Jerusalem.
Area: 697 km2 World Factbook
Population: 5,567,301 (July 2014) World Factbook
Singapore, officially the Republic of Singapore, is a sovereign city-state and island country in Southeast Asia. It lies off the southern tip of the Malay Peninsula and is 137 kilometres north of the equator. Wikipedia
Area: 125 km2 calculated
Jerusalem, located on a plateau in the Judean Mountains between the Mediterranean and the Dead Sea, is one of the oldest cities in the world. It is considered holy to the three major Abrahamic religions—Judaism, Christianity and Islam. Wikipedia