One reason may be that there are already so many immigrants in New York City. New York City is perhaps the most culturally diverse city on earth. People from every country on earth live in New York City, and there are countless ethnic neighborhoods representing pretty much every culture.
So, new immigrants might feel more at home in New York City, where they can easily find a community of people from their own country, than in another, less-diverse city, where it is difficult to find people from their home country.
Another reason may be economic opportunity. As the largest city in the United States, New York City is one of the best places to find a job. It is also one of the most expensive cities in the United States, however, it is obviously better to have a job in an expensive city than to be unemployed in another city where the cost of living is cheaper.
Another reason (which applies more to past immigrants than recent ones) is that New York City is where the Ellis Island Immigration Station was. All immigrants who entered the U.S. on its East Coast came through Ellis Island. After such a long journey from their homeland, lots of them decided to just stay in New York City, rather than continue across the country looking for a place to settle. Or, they decided to stay in New York City for just a little while, to rest up and get their bearings, and then decided they liked the city and wanted to stay.
you did
Because New York City was the first place in America that they saw and experienced. All immigrants into the United States landed first in New York City, and had to pass through Ellis Island, before becoming citizens.
The immigrants make New York City's population a lot more bigger than before!
The main port of entry was New York
New York City.
New York City
Immigrants landed and stayed there.
Ellis Island.
Harlem
They don't.
The immigrants were heading to the US on Titanic which was destined for New York City.
Chinese immigrants first began arriving in New York City in the mid-1700s, but they did not start immigrating in significant numbers until the mid-1800s.