 In the years 1919–1939, Warsaw Voivodeship covered north-central part of Poland, bordering East Prussia to the north, Pomorze Voivodeship and Łódź Voivodeship to the west, Kielce Voivodeship to the south and both Lublin Voivodeship and Białystok Voivodeship to the east.Its area, after April 1, 1938, was 31 656 km² (see