Regional Statistics
Population in Kosów Lacki Municipality 2026
Kosów Lacki municipality ranks 1672 of 2,478 Polish municipalities. Population shrank by 668 residents -11.23% between 2019-2024, now at 5,279.
Among 1984 declining municipalities, in bottom 10% for rate of decline. Within Sokołowski county, ranks 3 of 9 municipalities.
Based on 31 years of official GUS statistics for Sokołowski county municipalities within Masovian voivodeship.
Popular Cities in Poland
You may also be interested in
Contact Information for Kosów Lacki
Updated 28 days ago
Top tools
REGON Number Generator
Generate valid 9-digit and 14-digit Polish REGON numbers with correct check digits for testing.
Polish IBAN Generator
Generate a valid Polish IBAN from a bank code and account number. See the 28-character PL IBAN format with a real example.
Polish ID Number Generator
Generate valid Polish ID card (dowód osobisty) numbers with correct check digits. Each number follows the official series-and-number format used on Poland's national identity card.
Top articles
When Do You Have to Give Your PESEL in Poland? Your Rights Under RODO
Learn when you're legally required to share your PESEL number in Poland and when you can refuse under RODO (GDPR). A foreigner's guide to data protection.
8 min readHow to Pay Tax After Buying a Car in Poland
Step-by-step guide to paying PCC tax after buying a used car in Poland. Covers the 2% rate, 14-day deadline, PCC-3 form, and online payment.
9 min readNIP Number in Poland: How to Find, Check, and Validate It
What is a NIP number in Poland? Learn how to find your own NIP, check a company's tax ID, and validate any Polish NIP online.
7 min readLet's build Poland.gg together
Join our Discord community. Get early access, shape the roadmap, and connect with data people across Poland.
Dashboard and business tools go public in 2027 — early supporters access them first and keep their discount on everything.
Get up to 90% off — forever
The longer you stay, the less you pay. 9% off per month, stacking up to 90%. The 100 longest supporters get free access for life.
© 2026 Poland.gg