Regional Statistics
Population in Sępoleński County 2025
In 2024, Sępoleński county ranked 341 of 380 Polish counties. Population shrank by 2,423 residents -5.9% between 2019-2024, at 38,633.
Among 339 declining counties, in the bottom 40% for rate of decline. Within Kuyavian-Pomeranian voivodeship, ranked 21 of 23 counties.
Based on 31 years of official GUS statistics for Sępoleński county and its 4 municipalities within Kuyavian-Pomeranian voivodeship.
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