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Population in Sejny Municipality 2021
In 2021, Sejny municipality ranked 2115 of 2,478 Polish municipalities. Population shrank by 243 residents -6.0% between 2016-2021, at 3,806.
Among 1984 declining municipalities, in bottom 50% for rate of decline. Within Sejneński county, ranked 3 of 5 municipalities.
Based on 31 years of official GUS statistics for Sejneński county municipalities within Podlaskie voivodeship.
Total Population Chart
Lowest at 3,778 in 2024
Highest at 4,383 in 1995
1995
29 years (+5 year forecast)
2024
Gmina Ranking
2135/2477 Municipality 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
Sejny