Data / Population / Ostrołęcki

Population in Ostrołęcki

Population in Ostrołęcki was 357,441 in 2025, according to Eurostat, European Commission. That is down 0.6% from 2024. That is the 55th highest of 73 areas in 2025.

Compared with Mazowiecki regionalny and Poland and European Union (27)

Rankings

• Countries by population 215 places
• EU countries by population 27 places
• US states by population 51 places
• NUTS 3 areas of Poland by population 73 places

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

Eurostat. Population on 1 January by NUTS 3 region (demo_r_pjanaggr3). https://ec.europa.eu/eurostat/databrowser/view/demo_r_pjanaggr3/default/table. Retrieved 2026-10-08.

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More statistics for Ostrołęcki

• Live births
• Crude birth rate
• Crude death rate
• Deaths
• Age dependency ratio (ages 15 to 64 base)
• Total fertility rate
• Gross domestic product (GDP)
• GDP per capita
• GDP per capita in PPS (EU27 = 100)
• Median age
• Population aged 15 to 64
• Population aged 65 and over
• Population density
• Nights spent in tourist accommodation

All statistics for Ostrołęcki