Kostkowo is a

settlement Settlement may refer to: *Human settlement, a community where people live *Settlement (structural), the distortion or disruption of parts of a building *Closing (real estate), the final step in executing a real estate transaction *Settlement (fina ...

in the administrative district of Gmina Rybno, within Działdowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately south-west of Rybno, north-west of Działdowo, and south-west of the regional capital

Olsztyn Olsztyn ( , ; german: Allenstein ; Old Prussian: ''Alnāsteini'' * Latin: ''Allenstenium'', ''Holstin'') is a city on the Łyna River in northern Poland. It is the capital of the Warmian-Masurian Voivodeship, and is a city with county rights. ...

References

Kostkowo {{Działdowo-geo-stub