from Wikipedia:-
The term Yekke (adjective: Yekkish) (alt: Jecke or Yecke) is a generally jovial, mildly derogatory term primarily used by Jews to refer to their coreligionists from Germany or who adhere to the Western-European minhag.
Today, very few original Yekkes are still German residents, but they remain in regions such as Switzerland, Eastern France (Alsace and Lorraine), and Luxembourg. A significant community managed to escape Frankfurt after Kristallnacht, and relocated to the Washington Heights region of New York City, where they still have a synagogue, K’hal Adass Jeshurun, which punctiliously adheres to the Yekkish liturgical text, rituals, and melodies.[1] Most of the 200,000 Jews living in Germany today emigrated from the former USSR after 1990 and only 105,000 are registered members of Jewish communities.[2]
A group of Yekkes established kibbutz Chofetz Chaim in the Gedarim region of Israel just south of Tel Aviv. Recently a few new Yekkish communities have been started in Israel by “Machon Moreshet Ashkenaz,” and one of the leading communities is K’hal Adas Yeshurun of Jerusalem, which is running a “Nusach Project”, a project of preserving the special Yekkish melodies.