Dongguan (China) is 2.3 times larger than Yongkang, Zhejiang.
Area: 2,456 km2 calculated
Population: 6,445,777 (2000)
Dongguan is a prefecture-level city in central Guangdong province, People's Republic of China. Wikipedia
Area: 1,065 km2 calculated
Population: 557,067 (2000)
Yongkang is a county-level city located in the central part of Zhejiang province, People's Republic of China. It has an area of 1,049 km² and a population of 536,000 with more than 100,000 non-resident workers. Wikipedia