Territory of Ostrołęka County 2024

In 2024, Ostrołęka county ranked 301 nationally among Poland's 380 counties by area, in the bottom 10% of smallest counties. Covered 33 km² (3,346 ha). Within Masovian province, ranked 33 of 42 counties. Contained 1 municipality.

Official GUS territorial statistics for Ostrołęka county and its 1 municipality within Masovian province.