Regional Statistics
Population in Łomżyński County 2021
In 2021, Łomżyński county ranked 293 of 380 Polish counties. Population shrank by 1,394 residents -2.72% between 2016-2021, at 49,911.
Among 339 declining counties, in the bottom 30% for rate of decline. 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.
Vital Statistics
births and deathsAge Structure
children, working age, and elderlyPopulation by Gender
Age Distribution
from 0 to 85+ yearsPopular Cities in Poland
Contact Information for Łomżyński
Updated 98 days ago
Statistics
Show allTerritory
Total area, land use composition, forest coverage, and nature protection.
Housing & LivingHousing Market
Housing stock, dwellings completed, building permits, average dwelling size, utilities coverage, and construction trends.
EconomyTourism
Foreign tourist arrivals, nights spent, and visitors by country of origin.
Top tools
Top articles
How to Pay Tax on Rental Income in Poland
Step-by-step guide to paying tax on rental income in Poland: ryczałt rates, registration, monthly payments via mikrorachunek, and PIT-28 filing.
10 min readHow to Get a PESEL for Your Child Born Abroad or Newborn in Poland
How to get a PESEL for your child born outside Poland or as a newborn. Required documents, which office to visit, and what to expect.
7 min readHow to Pay a PIT Underpayment in Poland
Owe money after filing your PIT in Poland? Learn how to pay a niedopłata step by step, including deadlines, transfer details, and late payment interest.
8 min readMaking sense of Poland
I dig through Polish legal databases and government statistics so you don't have to. Property deep-dives, tax guides, free tools, and the kind of data stories that never make it into English.
© 2026 Poland.gg