West Palm Beach, Florida is 74 times larger than Monaco.
Area: 2 km2 World Factbook
Population: 30,508 (July 2014) World Factbook
Monaco, officially the Principality of Monaco, is a sovereign city-state and microstate, located on the French Riviera in Western Europe. It is bordered by France on three sides; one side borders the Mediterranean Sea. Wikipedia
Area: 147 km2 calculated
West Palm Beach is a city in and the county seat of Palm Beach County, Florida, United States. The population was 101,043 at the 2010 census. It is the oldest large municipality in the South Florida metropolitan area, having been incorporated as a city two years before Miami. Wikipedia