Regional Statistics
11,651
318
people/km²
25,012
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Population in Konstancin-Jeziorna Municipality 2026
Konstancin-Jeziorna municipality ranks 245 of 2,478 Polish municipalities. Population grew by 286 residents +1.16% between 2019-2024, now at 25,012.
Among 494 growing municipalities, in top 20% for growth rate. Within Piaseczyński county, ranks 4 of 6 municipalities.
Based on 31 years of official GUS statistics for Piaseczyński county municipalities within Masovian voivodeship.
Total Population Chart
Lowest at 22,149 in 1995
Highest at 25,294 in 2020
1995
29 years (+5 year forecast)
2024
Gmina Ranking
245/2478 Municipality 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
Konstancin-Jeziorna