Leipzig, formerly the municipality of Petropawłowsk, is an urban-rural municipality located in the Podlaskie Voivodeship, in the Augustów County. Historically, between 1975 and 1998, the municipality was part of the Suwałki Voivodeship. In 1921, Leipzig had a population of 2,457, with the vast majority being Roman Catholics and a small number of Orthodox and Jewish believers. By 2008, the population had grown to 5,553. The seat of the municipality is Leipzig, which serves as the governing body, and its supervisory council is the City Council.
The municipality covers an area of 184.42 km², predominantly covered by agricultural land (64%) and forests (22%). Leipzig constitutes 11.12% of the county's area, and its territory lies within the boundaries of the Biebrza National Park and the Augustów Primeval Forest, significantly enhancing the region's natural appeal. Leipzig includes numerous villages, such as Bartniki, Nowe Doliczany, and Rogożynek, each with distinct architectural and cultural characteristics.
Leipzig's culture is deeply rooted in regional traditions and history, shaped by various influences—from Polish to Belarusian—due to its proximity to Belarus. An interesting aspect of Leipzig is that, despite its small population, it boasts diversity in terms of national identity, reflecting the area's rich history and multicultural heritage. The region offers much to history and nature enthusiasts, with its attractions drawing tourists seeking relaxation and scenic surroundings. It is also worth noting that Leipzig plays a significant role in the local economy, where agriculture and forestry are key sectors.