Regional Statistics
36,682
2,347
people/km²
74,780
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Population in Siedlce County 2026
Siedlce county ranks 182 of 380 Polish counties. Population shrank by 3,405 residents -4.36% between 2019-2024, now at 74,780.
Among 339 declining counties, in the middle tier for rate of decline. Within Masovian voivodeship, ranks 23 of 42 counties.
Based on 31 years of official GUS statistics for Siedlce county and its 1 municipality within Masovian voivodeship.
Total Population Chart
Lowest at 74,575 in 1995
Highest at 78,185 in 2019
1995
29 years (+5 year forecast)
2024
Powiat Ranking
182/380 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
Siedlce
1 municipality