Zoucheng (China) is 9.4 times larger than Irvine, California.
Area: 173 km2 calculated
Irvine is a suburban city in Orange County, California, United States. It is a planned city, mainly developed by the Irvine Company since the 1960s. Wikipedia
Area: 1,625 km2 calculated
Zoucheng is a county-level city in the south of Shandong province in China. Before it became a city, it was known as Zou County or Zouxian. Zoucheng is located about 20 km south of the city of Qufu, and like Qufu, is administratively under the prefecture-level city of Jining. Wikipedia