Territory of Osiek Municipality 2025

In 2024, Osiek municipality ranked 2118 nationally among Poland's 2,478 municipalities by area, in the bottom 30% by size. Covered 75 km² (7,501 ha). In Brodnicki county, ranked 8 of 10 municipalities. Within Kuyavian-Pomeranian province, ranked 127.

Official GUS territorial statistics for Osiek municipality in Brodnicki county, Kuyavian-Pomeranian province.