Illinois (USA) is 1,675 times larger than Richmond, California.
Area: 143,793 km2 US Census
Population: 12,882,135 (July 2013) US Census
Illinois is a state in the Midwestern United States. It is the 5th most populous and 25th most extensive state, and is often noted as a microcosm of the entire country. Wikipedia
Area: 86 km2 calculated
Population: 106,516 (2012)
Richmond is a city in western Contra Costa County, California, United States. The city was incorporated on August 7, 1905. Wikipedia