Regional Statistics
25,963
41
people/km²
87,494
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Population in Ostrołęcki County 2023
In 2023, Ostrołęcki county ranked 138 of 380 Polish counties. Population shrank by 1,241 residents -1.4% between 2018-2023, at 87,494.
Among 339 declining counties, ranked in top 20% for steepest loss. Within Masovian voivodeship, ranked 16 of 42 counties.
Based on 31 years of official GUS statistics for Ostrołęcki county and its 11 municipalities within Masovian voivodeship.
Total Population Chart
Lowest at 82,815 in 1999
Highest at 88,944 in 2017
1995
29 years (+5 year forecast)
2024
Powiat Ranking
139/380 County in Poland
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Year over Year
since 2022
2023
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Vital Statistics
births and deaths
Age Structure
children, working age, and elderly
Gender
Age Distribution
from 0 to 75+ years
Ostrołęcki
11 municipalities