The Bartniczka Commune, located in the Kuyavian-Pomeranian Voivodeship within the Brodnica County, was established in 1934 as the collective commune of Grążawy. Over the years, it underwent changes in its administrative affiliations, belonging to various voivodeships, until in 2005 it adopted its current name, referring to the hamlet of Bartniczka, which gained the status of a locality. The seat of the commune is Bartniczka, and according to data from 2013, it is inhabited by 4,714 people. The commune, spanning an area of 83.56 km², is characterized by significant areas of agricultural and forest land. Three important wooden heritage sites are registered within the commune: the Parish Church of St. Martin in Grążawy from 1752, the Church of the Visitation of the Blessed Virgin Mary in Jastrzębie from the 19th century, and the Church of St. Lawrence and Nicholas in Radoszki from 1717, which are valuable examples of sacral architecture. Culturally, the commune nurtures local traditions, and its administrative structure includes villages such as Bartniczka, Grążawy, Gutowo, and others, although some, like Długi Most or Gołkówko, do not have the status of a village council (sołectwo). The history of the commune is rich and complex, connected with administrative reforms and the cultural influences of the region. An interesting fact is the change of the commune's name from Grążawy to Bartniczka, which is closely tied to local development and the aspirations of its inhabitants.