Ostrów County ( Polish : powiat ostrowski ) is a county in Masovian Voivodeship , east-central Poland . Its seat is located in the town of Ostrów Mazowiecka , with the only other town of the county being Brok . The county was established on 1 January 1999, and historically existed from 1919 to 1939 in the Białystok Voivodeship , Second Polish Republic , and in 1939, in the Warsaw Voivodeship .
3-421: The county covers an area of 1,218.06 square kilometres (470.3 sq mi). As of 2019, its total population is 72,558, out of which the population of Ostrów Mazowiecka is 22,489, that of Brok is 1,941, and the rural population is 48,128. Ostrów County is bordered by Łomża County to the north, Zambrów County to the north-east, Wysokie Mazowieckie County to the east, Sokołów County and Węgrów County to
6-472: A result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Zambrów , which lies 64 kilometres (40 mi) west of the regional capital Białystok . The county covers an area of 733.11 square kilometres (283.1 sq mi). As of 2019 its total population is 43,663, out of which the population of Zambrów is 22,098 and the rural population is 21,565. Zambrów County
9-570: The south, Wyszków County to the south-west, and Ostrołęka County to the north-west. The county is subdivided into 11 gminas (one urban, one urban-rural and nine rural). These are listed in the following table, in descending order of population. Zambr%C3%B3w County Zambrów County ( Polish : powiat zambrowski ) is a unit of territorial administration and local government ( powiat ) in Podlaskie Voivodeship , north-eastern Poland . It came into being on January 1, 1999, as
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