What is the population density of NYC?
Demographics of New York City
The  largest ethnic groups as of the 2005 census estimates are: African American, African or Caribbean, Puerto Ricans, Italians, West Indians, Dominicans, Chinese, Irish, Russian, and German.[32][33] The Puerto Rican population of New York City is the largest outside Puerto Rico.[34] The New York City metropolitan area is also home to the largest Italian population in North America and the third largest Italian population outside of Italy. Italians emigrated to the city in large numbers in the early 20th century, establishing several "Little Italies". The Irish also have a notable presence, along with Germans.