Hong Kong is 3.5 times larger than Malta.
Area: 1,104 km2 World Factbook
Population: 7,112,688 (July 2014) World Factbook
Hong Kong, alternatively known by its initials H.K., is a former British Colony and is currently a Special Administrative Region of the People's Republic of China, enclosed by the Pearl River Delta and South China Sea. Wikipedia
Area: 316 km2 World Factbook
Population: 412,655 (July 2014) World Factbook
Malta is a southern European country in the Mediterranean Sea. It lies 80 km south of Sicily, 284 km east of Tunisia, and 333 km north of Libya. The country covers just over 316 km², making it one of the world's smallest and most densely populated countries. Wikipedia