Norfolk, Virginia is 4 times larger than Norfolk Island.
Area: 36 km2 World Factbook
Population: 2,210 (July 2014) World Factbook
Norfolk Island is a small island in the Pacific Ocean located between Australia, New Zealand and New Caledonia, 1,412 kilometres directly east of mainland Australia's Evans Head, and about 900 kilometres from Lord Howe Island. Wikipedia
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