Orange County, California is 17 times larger than Evansville, Indiana.
Area: 124 km2 calculated
Evansville is the commercial, medical and cultural hub of Southwestern Indiana and the Illinois-Indiana-Kentucky tri-state area. It is the third-largest city in the state of Indiana and the largest city in Southern Indiana. Wikipedia
Area: 2,064 km2 calculated
Orange County is a county in the U.S. state of California. As of the 2010 census, the population was 3,010,232 making it the third-most populous county in California, the sixth-most populous in the United States, and it more populous than twenty-one U.S. states. Its county seat is Santa Ana. Wikipedia