Siedlecki: population, economy and official figures

Siedlecki is a subregion in Mazowiecki regionalny, Poland. Siedlecki had 395,631 residents on 1 January 2025, 18.1% of Mazowiecki regionalny and 1.08% of Poland; 48th largest of 73 subregions in Poland.

In depth

• Economy, jobs and prices in Siedlecki: GDP per person was 23,700 purchasing power standards (PPS) in 2023, 62% of the EU average (77% for Poland); 32nd highest of 73 subregions in Poland.
• Health in Siedlecki: The Siedlecki subregion had 29.9 working doctors per 10,000 residents in 2024, against 47.7 across Poland, 28th highest of 73 Polish subregions.
• Education in Siedlecki: In 2025, 964 children attended preschool in the Siedlecki subregion for every 1,000 children aged 3 to 5, against 950 nationally, 23rd highest of 73 Polish subregions.
• Poverty and living standards in Siedlecki: 3.7% of residents of the Siedlecki subregion lived in households receiving social assistance under the income test in 2025, against 3.1% in Poland, 28th highest of 73 Polish subregions.
• Government budget and revenue in Siedlecki: Municipal budgets in the Siedlecki subregion took in PLN 9,596 of revenue per resident in 2025, against PLN 9,864 for all Polish municipalities, 28th highest of 73 Polish subregions.

Figures come from Poland's own official statistics and from Eurostat's regional statistics for NUTS 3 areas. Comparisons with the EU average use purchasing power standards (PPS), which adjust for price differences.

Other subregions in Mazowiecki regionalny

• Radomski 558,575
• Ostrołęcki 357,441
• Ciechanowski 317,859
• Płocki 301,682
• Żyrardowski 253,967

Up a level: Mazowiecki regionalny · all regions of Poland · how local power works in Poland

Sources

• Eurostat: Eurostat dataset demo_r_pjangrp3: Population on 1 January (NUTS 3), read 23 October 2026 · saved copy (SHA-256 4c748d3cba3a…)
• Eurostat: Eurostat dataset demo_r_d3dens: Population density, read 23 October 2026 · saved copy (SHA-256 f4b59fe9d121…)
• Eurostat: Eurostat dataset nama_10r_3gdp: GDP per person, PPS (NUTS 3), read 23 October 2026 · saved copy (SHA-256 3bf0fc662f56…)
• Eurostat: Eurostat dataset nama_10r_3gdp: GDP, million euros (NUTS 3), read 23 October 2026 · saved copy (SHA-256 096e15e5fdb3…)
• Eurostat: Eurostat dataset nama_10r_3empers: Employment, thousand people (NUTS 3), read 23 October 2026 · saved copy (SHA-256 664e4e3a6dc0…)
• Eurostat: Eurostat dataset demo_r_pjanind3: Median age of the population (NUTS 3), read 23 October 2026 · saved copy (SHA-256 7bf6ade55a0d…)
• Eurostat: Eurostat dataset demo_r_pjanind3: Share of people aged 65 or over (NUTS 3), read 23 October 2026 · saved copy (SHA-256 17aa0d08ab9c…)
• Eurostat: Eurostat dataset demo_r_fagec3: Live births (NUTS 3), read 23 October 2026 · saved copy (SHA-256 cfda9b5f4ebd…)
• Eurostat: Eurostat dataset reg_area3: Area, read 23 October 2026 · saved copy (SHA-256 75302b0aafe9…)
• Eurostat: Eurostat dataset nama_10r_3empers: Employment (thousand persons) by NUTS 3 region and industry, read 23 October 2026 · saved copy (SHA-256 222a97c302d3…)
• Eurostat: Eurostat dataset nama_10r_3gva: Gross value added at basic prices by NUTS 3 region and industry, read 23 October 2026 · saved copy (SHA-256 c656e8563bdf…)
• Statistics Poland (GUS): Bank Danych Lokalnych (Local Data Bank) API v1: 31 indicators for all 73 NUTS3 subregions and Poland (wages, registered unemployment, medical staff, pharmacies, preschool and nursery care, class sizes, social assistance, crime, housing, flat prices, municipal and county budgets), read 24 October 2026 · saved copy (SHA-256 2043902a9f37…)
• Eurostat: Eurostat dataset demo_r_gind3: Population change: demographic balance and crude rates by NUTS 3 region, read 23 October 2026 · saved copy (SHA-256 7548e948e15c…)

Each saved copy is the file exactly as downloaded, kept so the figures can be checked even if the source changes. Report an error.