Poznań Voivodeship (1919–1939)
Poznań Voivodeship () was a unit of administrative division and local government in Poland in the years 1919–1939, created after World War I from the Prussian-German province of Poznań (Province of Posen). The borders were changed in 1939: the city of Bydgoszcz passed to the Pomeranian Voivodeship, but some eastern areas were included (see Territorial changes of Polish Voivodeships on April 1, 1938). During World War II, it was occupied by Nazi Germany and annexed as "Reichsgau Wartheland" "(Reich province of the Land of the Warta River)". Area and counties. Between April 1, 1938 and September 1 , 1939, the Voivodeship's area was 28 089 km, and its population - 2 339 600 (according to the 1931 Polish census). It consisted of 29 powiats (the highest number in Poland, however, most of them were very small, both in area and population), 100 towns (the highest number in Poland) and 237 villages. Railroad density was high, with 10.1 km. per 100 km (total length of railroads within the Voivodeship's area was 2684 km, the highest in the whole country). Forests covered 19.8% of the Voivodeship, which was lower than the national average (in 1937 the average was 22.2 %). Poznańskie Voivodeship was one of the richest and best developed in interwar Poland. With numerous cities and well-developed rail, it also was a breadbasket of the country, its highly efficient agriculture was well-mechanized. The city of Poznań was a big industrial center, as well as a key railroad junction. Only 7.6% of population was illiterate, which was much lower than the national average of 23.1% (as of 1931). Poles made up the majority of the population (90.5%), with 7.4% Germans and 1.9% Jews. After World War I the number of Germans was 224,254 in 1926 and 203,135 in  1934. This is the list of the Poznań Voivodeship counties as for August 31, 1939: Main cities. The biggest cities of the Voivodeship were (data according to the 1931 census): German minority. According to Polish census in 1921 there were 16.7% Germans in Polish areas (327 846 overall) and 9.2% in 1931 (193 044 overall).