From the foundation of Jewish Community of Zemun the number of its members varied a lot as a result of historic circumstances.
At the beginning of 19th century Zemun Community counted 221 members. That number could not be increased due to regulations prohibiting Jews to populate the border area. As the limitations regarding population were withdrawn the number of members multiplied.
There were around 1200 Jews enlisted according to 1912 census.
The breakdown of Austro-Hungarian empire and foundation of Kingdom of Serbs, Croats and Slovenians after World War 1 caused massive emigration of Zemun Jews. Accordingly the number of Jew dropped to approx. 600. That figure remained until the beginning of World War 2.
Holocaust took away 539 lives of members of Jewish Community in Zemun.
Part of the Jews who survived returned to Zemun in 1945. Some of the Jews from other parts of the country also settled in Zemun what made a list of 115 members of the community that year.