In 2014, the city had an estimated population density of 27,858 people per square mile (10,756/km²), rendering it the most densely populated of all municipalities housing over 100,000 residents in the United States; however, several small cities (of fewer than 100,000) in adjacent Hudson County, New Jersey are more dense overall, as per the 2000 Census. Geographically co-extensive with New York County, the borough of Manhattan's population density of 71,672 people per square mile (27,673/km²) makes it the highest of any county in the United States and higher than the density of any individual American city.
What is the population density of Manhattan per square kilometer?
27,673