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.
Demographic history of Poland
7. Population gain Recovered Territories Germans remaining in Poland after the war in the Recovered Territories. This group included 1,130,000 bi-lingual Polish-German persons who declared their allegiance to Poland. Also remaining in 1950 were 94,000 German nationals, 36,000 Germans from pre-war Danzig and 1,500 ethnic Germans of other nations. Most of this group emigrated to Germany after 1956. The ethnic German population remaining in the 1990s was about 300,000.