Omaha, Nebraska is 2.4 times larger than Norfolk, Virginia.
Area: 143 km2 calculated
Norfolk is an independent city in the Commonwealth of Virginia. At the 2010 census, the population was 242,803; in 2013, the population was estimated to be 246,392 making it the second-most populous city in Virginia, behind neighboring Virginia Beach. Wikipedia
Area: 342 km2 calculated
Omaha is the largest city in the state of Nebraska, United States, and is the county seat of Douglas County. It is located in the Midwestern United States on the Missouri River, about 10 miles north of the mouth of the Platte River. Wikipedia