Regional Statistics
2,206
37
people/km²
5,457
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Population in Sienno Municipality 2026
Sienno municipality ranks 1622 of 2,478 Polish municipalities. Population shrank by 345 residents -5.95% between 2019-2024, now at 5,457.
Among 1984 declining municipalities, in bottom 50% for rate of decline. Within Lipski county, ranks 2 of 6 municipalities.
Based on 31 years of official GUS statistics for Lipski county municipalities within Masovian voivodeship.
Total Population Chart
Lowest at 5,457 in 2024
Highest at 7,272 in 1995
1995
29 years (+5 year forecast)
2024
Gmina Ranking
1622/2478 Municipality 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
Sienno