The Masovian Voivodship (in Polish województwo mazowieckie) is the largest and most populous of the sixteen Polish administrative regions or voivodships created in 1999. It covers an area of 35,598 km² in eastern-central Poland and contains nearly 5.1 million inhabitants. Its principal cities are Warsaw (population 1.6 million) in the centre, Radom (230,000) in the south, Plock (130,000) in the west, Siedlce (75,000) in the east, and Ostroleka (55,000) in the north.
It was created on 1 January 1999 out of the former Warsaw, Plock, Ciechanow, Ostroleka, Siedlce and Radom voivodships as a result of Local Government Reorganization Act of 1998. The voivodship's name recalls the region's traditional name of Mazovia (Mazowsze) with which it more or less corresponds.
42 counties (4 city counties + 38 land counties), and 325 communes (including 85 urban communes or cities).
Voivodships of Poland:Administrative division
Major cities and towns
(population in 2003):
Greater Poland Voivodship | Kuyavian-Pomeranian Voivodship | Lesser Poland Voivodship | Lodz Voivodship | Lower Silesian Voivodship | Lublin Voivodship | Lubusz Voivodship | Masovian Voivodship | Opole Voivodship | Subcarpathian Voivodship | Podlasie Voivodship | Pomeranian Voivodship | Swietokrzyskie Voivodship | Silesian Voivodship | Warmian-Masurian Voivodship | West Pomeranian Voivodship