Manhattan's population density is 66,940 people per square mile (25,846/km 2). The city has an extremely high population density of 26,403 people per square mile (10,194/km 2), about 10,000 more people per square mile than the next densest large American city, San Francisco. New York's two key demographic features are its density and diversity. English is least spoken in neighborhoods such as Flushing, Sunset Park, and Corona. English remains the most widely spoken language, although there are areas in the outer boroughs in which up to 25% of people speak English as an alternate language, and/or have limited or no English language fluency. As many as 800 languages are spoken in New York, making it the most linguistically diverse city in the world. Throughout its history, New York City has been a major point of entry for immigrants the term ' melting pot' was coined to describe densely populated immigrant neighborhoods on the Lower East Side. New York City enforces a right-to-shelter law guaranteeing shelter to anyone who needs shelter, regardless of their immigration status and the city is home to more than 3.2 million residents born outside the U.S., the largest foreign-born population of any city in the world as of 2016. The city and its metropolitan area are the premier gateway for legal immigration to the United States. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York City is one of the world's most populous megacities. The city is the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the U.S. The New York region continues to be by far the leading metropolitan gateway for legal immigrants admitted into the United States.

It is the largest city in the United States with a long history of international immigration. New York City is a large and ethnically diverse metropolis.

Population pyramid of New York City in 2021

Us population density map 1790