Demographics of Poland
According to the 2011 census by the Polish Central Statistical Office (GUS), at the end of 2011 Poland had a population of 38,538,447, which translates into an average population density of 123 people/km (urban 1105 per 1 km², rural 50 per 1 km²). 61.5% of the Polish population lives in urban areas, a number which is slowly diminishing. Poland is the 33rd most populous country in the world (9th in Europe, with 5.4% of the European population). Total population of Poland is almost stagnant (population growth was 0.08%). Average life expectancy was 70.5 for men and 78.9 for women. In 2009, it was expected to be 73.1 for men and 79.5 for women. Population distribution is uneven. Ethnically, Poland is a very homogeneous country, with 96.7% of population being Polish.
Congress Poland
Originally, the Kingdom had an area of roughly 128,500 km and a population of approximately 3.3 million. The new state would be one of the smallest Polish states ever, smaller than the preceding Duchy of Warsaw and much smaller than the Polish-Lithuanian Commonwealth which had a population of 10 million and an area of 1 million km. Its population reached 6.1 million by 1870 and 10 million by 1900. Most of the ethnic Poles in the Russian Empire lived in the Congress Kingdom, although some areas outside it also contained a Polish majority.