Estimates in the mid-1960s put the number of Hasidim in New York City at between forty and fifty thousand, with the Satmar the largest group at 1,300 families, the Belz, Bobov, Klausenberg ...

one Bobov (with a Satmar branch), and one Belz. Because of their proselytizing efforts, the Lubavitch (originally from Russia) are the most visible and best-known Hasidim to the non-Hasidic world.