Niedenstein's main settlement lies to the southeast of the Habichtswald Nature Park, right on the western slope of the Langenberge, a low mountain range reaching 557 m. The nearest city is Kassel, about 15 km to the northeast.
Niedenstein's main settlement is positioned to the southeast of the Habichtswald Nature Park, directly on the western slope of the Langenberge mountain range, which reaches a height of 557 m. The closest city is Kassel, located about 15 km northeast of it.