Regional Statistics
15,802
36
people/km²
49,496
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Population in Łomżyński County 2026
Łomżyński county ranks 293 of 380 Polish counties. Population shrank by 1,447 residents -2.84% between 2019-2024, now at 49,496.
Among 339 declining counties, ranks in top 30% for steepest loss. Within Podlaskie voivodeship, ranks 9 of 17 counties.
Based on 31 years of official GUS statistics for Łomżyński county and its 9 municipalities within Podlaskie voivodeship.
Total Population Chart
Lowest at 49,496 in 2024
Highest at 52,239 in 2010
1995
29 years (+5 year forecast)
2024
Powiat Ranking
293/380 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
Łomżyński
9 municipalities