Regional Statistics
Population in Wieczfnia Kościelna Municipality 2026
Wieczfnia Kościelna municipality ranks 2177 of 2,478 Polish municipalities. Population shrank by 451 residents -11.14% between 2019-2024, now at 3,597.
Among 1984 declining municipalities, in bottom 20% for rate of decline. Within Mławski county, ranks 8 of 10 municipalities.
Based on 31 years of official GUS statistics for Mławski county municipalities within Masovian voivodeship.
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