Ostrołęka Voivodeship
Ostrołęka Voivodeship (Polish: województwo ostrołęckie) was a unit of administrative division and local government in Poland in years 1975–1998, superseded by Masovian Voivodeship. Its capital city was Ostrołęka.
Population on 31 December 1998.
Coordinates: 53°05′04″N 21°33′57″E / 53.084467°N 21.565824°E
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