 Administratively it was located in the Kalisz Voivodeship in the Greater Poland Province of the Polish Crown.After the First Partition of Poland in 1772, Kamień was annexed by the Kingdom of Prussia, and under the Germanized name "Kamin" it formed part of the Flatow district ("Landkreis Flatow") until 1920, when the eastern part of the district with 30,516 inhabitants (including 8,600 Poles) and the towns of Kamień, Więcbork and Sępólno Krajeńskie were reintegrated with the established Polish Republic after the Treaty of Versailles.The town became part of Sępólno County.