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How many jews were there before the ww2

Checked on November 15, 2025
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Executive summary

Estimates in the available reporting put the global Jewish population on the eve of World War II at roughly 15.3–16.6 million, with many authoritative accounts centering on figures near 16.5–16.6 million and Europe alone holding about 9–9.5 million Jews [1] [2] [3]. Sources vary by methodology (who is counted as Jewish: halachic, self-identification, partial ancestry), and that variance explains much of the spread between 15.3 million and 16.6 million in the historical literature [1] [4].

1. How many Jews worldwide just before WWII? — The headline numbers

Different reputable compilers give slightly different totals: the American Jewish Yearbook and U.S. Holocaust Museum materials cite a world Jewish population near 15.3 million in 1933, while other surveys and retrospective tallies used by Israeli statisticians and think tanks place the 1939 pre-war total at about 16.5–16.6 million [1] [3] [5]. Journalists and analysts sometimes report a midpoint or rounded figure (commonly 16.5 million) when describing “pre‑World War II” totals to capture the broader scholarly range [6] [4].

2. Europe’s share — Where most Jews lived

On the eve of the Nazi era roughly 60% or more of the world’s Jewish population lived in Europe: commonly cited European totals are about 9–9.5 million Jews in the 1930s, concentrated in Eastern Europe—Poland (~3 million), the European USSR (~2.5–3 million), Romania (~756–980 thousand) and other countries [1] [7] [8]. The U.S. Holocaust Memorial Museum and Jewish reference sources both emphasize a European Jewish population of roughly 9.5 million in 1933 as a central benchmark [1] [9].

3. Why totals differ — Definitions and data sources matter

Scholars and agencies used different counting rules: some counts used “core” Jewish populations (those identifying only as Jewish), others added people with one Jewish parent or those identifying as partly Jewish, and still others used migration-adjusted or country-level administrative records. Reports that include partial Jewish ancestry or broader self-identification approach the higher ~16.5 million figure; more conservative demographic counts yield numbers nearer 15.3 million [4] [2] [1].

4. Country-by-country snapshots — The big contributors

Pre-war maps and handouts list Poland (~3.0–3.325 million), the Soviet Union (~2.5–3.0 million), Romania (~756,000–980,000), Germany (~525,000), Greece (~73,000) and smaller but significant communities across central and western Europe [7] [8] [1]. These national tallies are the building blocks for the broader global totals cited above [7] [1].

5. The scale of loss — Context after 1945

Sources repeatedly connect the pre-war baseline to the scale of the Holocaust: roughly two out of three European Jews died, and six million Jews are commonly cited as Holocaust victims; postwar Jewish populations in Europe were dramatically reduced and many survivors emigrated to Israel, the Americas and elsewhere [9] [10]. That demographic collapse explains why modern totals (about 14.8–15.2 million in recent reporting) still fall short of some pre‑war estimates [11] [12].

6. What journalists and researchers should watch for — Caveats for readers

When you see a single number—15.3 million, 16.5 million, 16.6 million—check how the source defines “Jewish” and which year it references (1933 versus 1939 are both used in reporting). Think tanks (e.g., Jewish People Policy Institute), national statistical offices, historical yearbooks and encyclopedias use different methods and cut‑offs; that methodological difference explains most apparent contradictions among authoritative sources [4] [1] [2].

7. Bottom line — A responsible summary

Available sources commonly place the global Jewish population before World War II in a band from about 15.3 million (American Jewish Yearbook/U.S. Holocaust Museum counts) to roughly 16.5–16.6 million (broader tallies that include partial ancestry or different criteria), with Europe containing approximately 9–9.5 million of those people [1] [2] [3]. Accepting that range—and noting the definitional reasons for differences—gives the most accurate, evidence-based answer given current reporting [1] [4].

Want to dive deeper?
What was the global Jewish population by country in 1939 before World War II?
How did the Jewish population change in Europe between 1914 and 1939?
What sources estimate the number of Jews killed during the Holocaust and how are they calculated?
Which countries had the largest Jewish communities in 1939 and what were their populations?
How did migration and persecution affect Jewish population figures in the 1930s leading up to WWII?