Queens (NYC borough) is 6.8 times larger than West Covina, California.
Area: 282 km2 calculated
Queens is the easternmost and largest in area of the five boroughs of New York City, geographically adjacent to the borough of Brooklyn at the western end of Long Island. Wikipedia
Area: 42 km2 calculated
West Covina is a city in Los Angeles County, California, located 19 miles east of Downtown Los Angeles in the eastern San Gabriel Valley and is part of Greater Los Angeles. The population for the city was 106,098 at the 2010 census. Wikipedia