Сколько всего человек исповедовало иудаи́зм в мире в 2018?
The world's core Jewish population was estimated at 14,511,000 in April 2018, up from 14.41 million in 2016. Demographer Sergio DellaPergola proposes an "extended" Jewish population, including people identifying as partly Jewish and non-Jews with Jewish parents, numbering 17.3 million globally, and an "enlarged" Jewish population figure that also includes non-Jewish members of Jewish households totaling 20.2 million. Additionally, the total number of people who hold or are eligible for Israeli citizenship under the Law of Return — defined as anyone with at least one Jewish grandparent, and who does not profess any other religion — is estimated at around 23 million, of which 6.6 million were living in Israel as of 2015. Figures for these expanded categories are less precise than for the core Jewish population.
14,511,000