Regional Statistics
Population in Białystok 2020
In 2020, Białystok county ranked 12 of 380 Polish counties. Population shrank by 1,306 residents -0.44% between 2015-2020, at 294,675.
Among 339 declining counties, ranked in top 30% for steepest loss. Within Podlaskie voivodeship, ranked 1 of 17 counties.
Based on 31 years of official GUS statistics for Białystok county and its 1 municipality within Podlaskie voivodeship.
Popular Cities in Poland
You may also be interested in
Contact Information for Białystok
Updated 52 days ago
Top tools
Mikrorachunek Checker
Check whether a mikrorachunek podatkowy number matches the official format and extract the embedded PESEL or NIP.
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.
NIP Generator
Generate valid Polish NIP (VAT / tax ID) numbers with correct checksums for software testing.
Top articles
How 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 readHow to Block Your PESEL Number in Poland
Step-by-step guide to blocking your PESEL number via mObywatel, your bank, or in person. Learn what zastrzeżenie PESEL protects and how to reverse it.
7 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 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