Are there still Jewish ghettos

Answer 1

No. Let us note for clarification that a ghetto is not simply a Jewish neighborhood (as Jews might organize for themselves), but a neighborhood where Jews are legally mandated to live by the government authorities and will likely have laws, walls, and curfews designed to keep Jews distinct from the Non-Jewish population.

Jews lived in ghettos throughout Europe and the Arab World for centuries prior to World War II. (The ghettoization under the Nazis was unique because it forced Jews that had been emancipated, i.e. let out of the ghettos, to be forced back in.) In Europe, after the Holocaust, it became politically untenable to put Jews into ghettos again. In the Arab World, Jews were in a state of quasi-emancipation, where some were in ghettos and others were not. However, there were mass emigrations of Jews from the Arab World to Israel and other Western countries which effectively emptied the Arab World ghettos since the entire population departed. New World countries (especially the United States) and Israel never had ghettos to start with, so they never had to disappear.