Demographics of Poland
According to GUS, about 38,325,000 people live in Poland, however, the same report states that the number of residents living in the country all the time is approximately 37,200,000; with 1,125,000 people living abroad for 6 to 7 months or more. It means that the permanent population may be correspondingly smaller.
History of the Jews in 20th-century Poland
Following the re-emergence of sovereign Poland after World War I and during the interwar period the number of Jews in the country grew rapidly. According to the Polish national census of 1921, there were 2,845,364 Jews living in the Second Polish Republic; by late 1938 that number had grown by over 16 percent, to approximately 3,310,000, mainly through migration from Ukraine and the Soviet Russia. The average rate of permanent settlement was about 30,000 per annum. At the same time, every year around 100,000 Jews were passing through Poland in unofficial emigration overseas. Between the end of the Polish–Soviet War of 1919 and late 1938, the Jewish population of the Republic grew by nearly half a million, or over 464,000 persons. Jews preferred to live in relatively tolerant Poland rather than in the USSR, and continued to integrate, to marry into Polish Gentile families, to bring them into their community through marriage, to feel Polish and to form an important part of Polish society. Between 1933 and 1938, around 25,000 German Jews fled Nazi Germany to sanctuary in Poland.