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Population in Łomżyński County 2025
In 2024, Łomżyński county ranked 293 of 380 Polish counties. Population shrank by 1,447 residents -2.84% between 2019-2024, at 49,496.
Among 339 declining counties, ranked in top 30% for steepest loss. Within Podlaskie voivodeship, ranked 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