Ostrołęka County is a powiat in northern part of the Masovian Voivodship in Poland.
| Masovian Voivodship Ostrołęka County
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| Coat of Arms |
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| Demographics |
| Population: | 84.612 (2003) |
| Density: | 40.31 |
| Geography |
| Area: | 2.099 kmē |
| Historical region: | Kurpie |
| Capital: | Ostrołęka |
| Communes: | Baranowo, Czarnia, Czerwin, Goworowo Kadzidło , Lelis, Łyse, Myszyniec, Olszewo-Borki, Rzekuń, Troszyn |
| County Website |