Gmina Brwinów is an urban-rural gmina in Pruszków County, Masovian Voivodeship, in east-central Poland. Its seat is the town of Brwinów, which lies approximately 7 kilometres south-west of Pruszków and 22 km south-west of Warsaw.
The gmina covers an area of 69.16 square kilometres, and as of 2006 its total population is 21,531, of which the population of Brwinów is 11,968, and the population of the rural part of the gmina is 9,563.
Wikipedia https://en.wikipedia.org/wiki/Gmina_Brwinów
Coordinates 52°8'33.198" N 20°43'1.452" E