Heshan, Guangdong is 39 times larger than Berkeley, California.
Area: 27 km2 calculated
Berkeley is a city on the east shore of San Francisco Bay in northern Alameda County, California, that is named after the eighteenth-century bishop and philosopher George Berkeley. Wikipedia
Area: 1,072 km2 calculated
Heshan is a county-level city of Jiangmen City in the southern part of Guangdong Province, China with a total land area of 1,108.3 square kilometres and a population of 360,000. If migrants this figure rises to around 550,000 persons residing within the city's borders. Wikipedia