Osiek is a

village A village is a clustered human settlement or community, larger than a hamlet but smaller than a town (although the word is often used to describe both hamlets and smaller towns), with a population typically ranging from a few hundred to ...

in the administrative district of

Gmina Czerwińsk nad Wisłą __NOTOC__ Gmina Czerwińsk nad Wisłą is a rural gmina (administrative district) in Płońsk County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Czerwińsk nad Wisłą, which lies approximately south of Płońsk and ...

, within

Płońsk County __NOTOC__ Płońsk County ( pl, powiat płoński) 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 ...

, Masovian Voivodeship, in east-central Poland.

References

Villages in Płońsk County {{Płońsk-geo-stub