In 1933 the Jewish-German population was around 500,000 people out of ~67 million people in Germany. Once the Nuremberg Laws (1935) were in enacted in addition to the anti-Semitic business laws many of the Jews in Germany applied for travel Visas ASAP (to other neighboring European countries for the most part).

There was also a push in 1938-39 by the British called "Kindertransport" involving ~10,000 Jews being admitted to England.

There is a good movie about a German Jewish family leaving Germany to live in Africa where the father is stationed as a soldier that is interesting if only marginally related to the question. It's called Nowhere in Africa if you are interested.

Here's a link to the Holocuast Museum Memorial page that has some of the more exact numbers.