Gmina Goszczyn is a rural gmina (administrative district) in Grójec County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Goszczyn, which lies approximately south of Grójec and south of Warsaw.
The gmina covers an area of , and as of 2006 its total population is 2,943.
Gmina Goszczyn contains the villages and settlements of Bàdków, Bàdków-Kolonia, Dà Âugowola, Goszczyn, Jakubów, Józefów, Modrzewina, Nowa Dà Âugowola, Olszew, Romanów and Sielec.
Gmina Goszczyn is bordered by the gminas of Belsk Duà ¼y, Jasieniec, Mogielnica and Promna.
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