Seattle is 4.1 times larger than Newark, New Jersey.
Area: 63 km2 calculated
Newark is the largest city in the U.S. state of New Jersey, and the county seat of Essex County. Wikipedia
Area: 259 km2 calculated
Seattle is a coastal seaport city and the seat of King County, in the U.S. state of Washington. With an estimated 652,405 residents as of 2013, Seattle is the largest city in the Pacific Northwest region of North America and the fastest-growing major city in the United States. Wikipedia