How many Jews are there in the world? That's a difficult question to answer, because not every country keeps track of such things, and not every Jew chooses to admit such things, particularly in countries where Jews are persecuted.
Most estimates I have seen suggest that there are about 13-14 million Jews in the world. The vast majority of these Jews live in either the United States and Israel, each with approximately 5 million Jews. There are less than 2 million Jews in Europe, 400,000 in Latin America and 350,000 in Canada. In Africa, there are less than 100,000 Jews, about 90% of whom live in the country of South Africa. There are about 100,000 Jews in Australia and New Zealand combined. There are about 50,000 Jews in Asia (not including Israel).
For extensive statistical information about Jews in America, see the North American Jewish Databank. and their 1990 National Jewish Population Survey (NJPS). A new survey was conducted in 2000; however, the results of this survey are not currently available online.
For more information about world population by religion, see the following sites: