New York City is 28 times larger than Macao.
Area: 28 km2 World Factbook
Population: 587,914 (July 2014) World Factbook
Macau, also spelled Macao, is one of the two Special Administrative Regions of the People's Republic of China, the other being Hong Kong. Wikipedia
Area: 784 km2 calculated
New York is the most populous city in the United States and the center of the New York metropolitan area, the premier gateway for legal immigration to the United States and one of the most populous urban agglomerations in the world. Wikipedia