Regional Statistics
20,177
1,472
people/km²
49,275
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Population in Ostrołęka County 2021
In 2021, Ostrołęka county ranked 301 of 380 Polish counties. Population shrank by 3,062 residents -5.85% between 2016-2021, at 49,275.
Among 339 declining counties, in the bottom 10% for rate of decline (mildest loss). Within Masovian voivodeship, ranked 33 of 42 counties.
Based on 31 years of official GUS statistics for Ostrołęka county and its 1 municipality within Masovian voivodeship.
Total Population Chart
Lowest at 47,696 in 2024
Highest at 55,271 in 1998
1995
29 years (+5 year forecast)
2024
Powiat Ranking
299/380 County in Poland
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Year over Year
since 2020
2021
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Vital Statistics
births and deaths
Age Structure
children, working age, and elderly
Gender
Age Distribution
from 0 to 75+ years
Ostrołęka
1 municipality