Regional Statistics
12,858
48
people/km²
38,633
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Population in Sępoleński County 2026
Sępoleński county ranks 341 of 380 Polish counties. Population shrank by 2,423 residents -5.9% between 2019-2024, now at 38,633.
Among 339 declining counties, in the bottom 40% for rate of decline. Within Kuyavian-Pomeranian voivodeship, ranks 21 of 23 counties.
Based on 31 years of official GUS statistics for Sępoleński county and its 4 municipalities within Kuyavian-Pomeranian voivodeship.
Total Population Chart
Lowest at 38,633 in 2024
Highest at 41,872 in 1997
1995
29 years (+5 year forecast)
2024
Powiat Ranking
341/380 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
Sępoleński
4 municipalities