Alberta (Canada) is 20,392 times larger than Downey, California.
Alberta is a province of Canada. With a population of 3,645,257 in 2011 and an estimated population of 4,082,571 as of January 1, 2014, it is Canada's fourth-most populous province and most populous of Canada's three prairie provinces. Wikipedia
Area: 32 km2 calculated
Downey is a city located in southeast Los Angeles County, California, United States, 21 km southeast of downtown Los Angeles. The city is best known as the birthplace of the Apollo space program, and is the hometown of Richard and Karen Carpenter. Wikipedia