Regional Statistics
17,762
56
people/km²
47,742
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Population in Sierpecki County 2026
Sierpecki county ranks 300 of 380 Polish counties. Population shrank by 4,212 residents -8.11% between 2019-2024, now at 47,742.
Among 339 declining counties, in the bottom 20% for rate of decline. Within Masovian voivodeship, ranks 32 of 42 counties.
Based on 31 years of official GUS statistics for Sierpecki county and its 7 municipalities within Masovian voivodeship.
Total Population Chart
Lowest at 47,742 in 2024
Highest at 56,654 in 1995
1995
29 years (+5 year forecast)
2024
Powiat Ranking
300/380 County in Poland
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Year over Year
since 2023
2024
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Vital Statistics
births and deaths
Age Structure
children, working age, and elderly
Gender
Age Distribution
from 0 to 75+ years
Sierpecki
7 municipalities