Regional Statistics
Population in Sierpecki County 2026
Sierpecki county ranks 300 of 380 Polish counties. Population shrank by 4,212 residents -8.11% between 2019-2024, now at 47,742.
Among 339 declining counties, in the bottom 30% for rate of decline. Within Masovian voivodeship, ranks 32 of 42 counties.
Based on 31 years of official GUS statistics for Sierpecki county and its 7 municipalities within Masovian voivodeship.
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Contact Information for Sierpecki
Updated 77 days ago
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