Japan is 5,306 times larger than Santa Ana, California.
Area: 377,915 km2 World Factbook
Population: 127,103,388 (July 2014) World Factbook
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south. Wikipedia
Area: 71 km2 calculated
Santa Ana is the county seat and second most populous city in Orange County, California. With a population of 329,427, as of the 2011 census, Santa Ana is the 57th most-populous city in the United States. Wikipedia