- I do know many Jewish families moved from or related to Chicago.
New York is the second largest Jewish population centre in the world, after Tel Aviv in Israel. The United States is competing with Israel for the title of home to the world's largest Jewish population, and has by far the largest community of Ashkenazi Jews, Jews who came from central and northern Europe.
The American Jews includes a range of Jewish religious communities ranging from the most theologically conservative Haredi communities to a large segment of Jews who are entirely secular. (I've meet people from both ends.)
Jews in the U.S. settled largely in and near the major cities. The metropolitan areas with the highest Jewish populations are New York City (1,750,000), Miami (535,000), Los Angeles (490,000), Philadelphia (254,000), Chicago (248,000), San Francisco (210,000), Boston (208,000), and Washington DC (165,000).
The Israeli community in the America is less widespread. The three significant Israeli immigrant communities in the United States are in Chicago (50,000), Miami (105,000), and New York City (162,000).
rzp