I don't believe I actually gave any indication of numbers however the Jewish refugees include a number of Jews evacuated from their homes in Palestine/Israel, and a much larger number of Jews who fled Arab countries.

The Jews of Jerusalem, and those of Gush Etzion, Atarot, Neve Yaakov and kibbutzim in the Gaza strip were forced to evacuate their homes and leave their property without compensation. The total number of such persons might have been under 10,000. They are more numerous if dependents are included.

In most cases, Jews were not allowed to take out their property, and in many cases they were forced to leave.

This Exodus did not take place all at once in 1948 in all countries.

Post 1948
In Egypt, Jews lingered on until they were forced to leave after the 6-Day war in 1967.

Not all of the Jews who left Arab or Muslim countries may be considered refugees, but over 600,000 were apparently forced to leave without their property and could be defined therefore as refugees.
In addition there were about 100,000 Jews in Iran in 1948. At the time of the Khomeini revolution in 1979, there were about 80,000. About 55,000 found life impossible under the Islamist revolution and fled Iran, leaving abut 25,000 in 2004

source
The Forgotten Refugees:
Jews From Arab Lands
By ADA AHARONI and ALAIN ALBAGLI

Jewish Population of Arab Countries *
   
856,000 1948
475,050 1958
72,600 1968
32,190 1976
7,800   2001

*Copyright 2006, by MidEastWeb for Coexistence