Europe is 265,017 times larger than Jersey City, New Jersey.
Area: 10,180,000 km2 DESA
Population: 738,199,000 (2012) DESA
Europe is, by convention, one of the world's seven continents. Wikipedia
Area: 38 km2 calculated
Population: 254,441 (2012)
Jersey City is the seat of Hudson County, New Jersey. As of the 2010 United States Census, the population of Jersey City was 247,597, making it the second-most populous city in New Jersey, after Newark. Wikipedia