Poles
Polish people are the sixth largest national group in the European Union. Estimates vary depending on source, though available data suggest a total number of around 60 million people worldwide (with roughly 21 million living outside of Poland, many of whom are not of Polish ethnicity, but Polish nationals). There are almost 38 million Poles in Poland alone. There are also Polish minorities in the surrounding countries including (Germany), and indigenous minorities in the Czech Republic, Hungary, Slovakia, northern and eastern Lithuania, western Ukraine, and western Belarus. There are some smaller indigenous minorities in nearby countries such as Moldova. There is also a Polish minority in Russia which includes indigenous Poles as well as those forcibly deported during and after World War II; the total number of Poles in what was the former Soviet Union is estimated at up to 3 million.
Demographic history of Poland
The population of the Commonwealth of both nations was never overwhelmingly either Roman Catholic or Polish. This resulted from Poland's possession of Ukraine and federation with Lithuania; in both these countries ethnic Poles were a distinct minority. The Commonwealth comprised primarily three nations: Poles, Lithuanians, and Ukrainians and Belarusians (the latter two usually referred to together as Ruthenians). Shortly after the Union of Lublin (1569), at the turn of the 16th to 17th century, the Commonwealth population was around 7 million, with a rough breakdown of 4.5m Poles, 0.75m Lithuanians, 0.7m Jews and 2m Ruthenians. In 1618, after the Truce of Deulino the Commonwealth population increased together with its territory, reaching 12 millions that could be roughly divided into: Poles - 4.5m, Ukrainians - 3.5m, Belarusians - 1.5m, Lithuanians - 0.75m, Prussians - 0.75m, Jews - 0.5m, Livionians - 0.5m; at that time nobility formed 10% and burghers, 15%. Population losses of 1648-1667 are estimated at 4m. Coupled with further population and territorial losses, by 1717 the Commonwealth population had fallen to 9m: roughly 4.5m Poles, 1.5m Ukrainians, 1.2m Belarusians, 0.8m Lithuanians, 0.5m Jews, 0.5m others The urban population was hit hard, falling to below 10%.