One of a less commonly known Jewish communities is located in what used to be an Emirate of Bukhara untill 1917, and was essentially transformed into Uzbekistan. Bukharan Jews used to number in tens of thousands, but at this point there’s only about a 100 of them left (in the city of Bukhara, Uzbekistan, that is). W
ith the dissolution of the Soviet Union most of them had immigrated to the United States and Israel, some for economic reasons, and some out of fear of a hardline Islamist government coming to power at some point. At this point the community is so small that it actually accelerates their assimilation into the ethnic majority of the land: for instance, the local clergy is forced to allow the intermarriage between members of their community and Uzbek, because at this point there is simply not enough of them left.
Meanwhile, there’s estimated to be around 150,000 Bukharan Jews in Israel and nearly a 100,000 in United States.
http://news.nationalgeographic.com/2015/08/150804-jews-diaspora-bukhara-uzbekistan-asia-world/