In prewar central Europe, the largest Jewish community was in Germany, with about 500,000 members (0.75% of the total German population). This was followed by Hungary with 445,000 (5.1%), Czechoslovakia with 357,000 (2.4%), and Austria with 191,000, most of whom resided in the capital city of Vienna (2.8%). In western Europe the largest Jewish communities were in Great Britain, with 300,000 Jews (0.65%); France, with 250,000 (0.6%); and the Netherlands, with 156,000 (1.8%). Additionally, 60,000 Jews (0.7%) lived in Belgium, 4,000 (0.02%) in Spain, and 1,200 (0.02%) in Portugal. Close to 16,000 Jews lived in Scandinavia, including 6,700 (0.11%) in Sweden, 5,700 (0.15%) in Denmark, 1,800 (0.05%) in Finland, and 1,400 (0.05%) in Norway. In southern Europe, Greece had the largest Jewish population, with about 73,000 Jews (1.2%). There were also significant Jewish communities in Yugoslavia (68,000, or 0.49%), Italy (48,000, or 0.11%), and Bulgaria (48,500, or 0.8%). 200 Jews (0.02%) lived in Albania.

Before the Nazis seized power in 1933, Europe had a richly diverse set of Jewish cultures, many of which were dynamic and highly developed, that drew from hundreds and, in some areas, a thousand or more years of Jewish life on the continent. The diverse nature of individual Jewish communities in occupations, religious practices, involvement and integration in regional and national life, and other areas made for fruitful and multifarious Jewish life across Europe. In many countries, Jews stood as cultural and political luminaries, and had marched alongside non-Jews in World War I.