__NOTOC__ Białobrzegi County () is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Białobrzegi, which lies south of Warsaw. The only other town in the county is Wyśmierzyce, lying west of Białobrzegi.
The county covers an area of . As of 2019 its total population is 33,524, out of which the population of Białobrzegi is 6,951, that of Wyśmierzyce is 885, and the rural population is 25,688.
Neighbouring counties Białobrzegi County is bordered by Grójec County to the north, Kozienice County to the east, Radom County to the south and Przysucha County to the south-west.
Administrative division The county is subdivided into six gminas (two urban-rural and four rural). These are listed in the following table, in descending order of population.
Gmina Type Area(km2) Population(2019) SeatGmina Białobrzegiurban-rural78.910,300BiałobrzegiGmina Stromiecrural156.55,664StromiecGmina Promnarural120.75,573PromnaGmina Stara Błotnicarural96.25,321Stara BłotnicaGmina Radzanówrural82.63,900RadzanówGmina Wyśmierzyceurban-rural104.32,766Wyśmierzyce
References