The Polish local government reforms adopted in 1998, which went into effect on 1 January 1999, reduced the number of voivodeships to sixteen. These 16 replaced the 49 former voivodeships that had existed from 1 July 1975, and bear a greater resemblance (in territory, but not in name) to the voivodeships that existed between 1950 and 1975.
Today's voivodeships are mostly named after historical and geographical regions, while those prior to 1998 generally took their names from the cities on which they were centered. The new units range in area from under 10,000 km2 (3,900 sq mi) (Opole Voivodeship) to over 35,000 km2 (14,000 sq mi) (Masovian Voivodeship), and in population from nearly one million (Opole Voivodeship) to over five million (Masovian Voivodeship).
Administrative authority at the voivodeship level is shared between a government-appointed governor called a voivode (wojewoda), an elected assembly called a sejmik, and an executive board (zarząd województwa) chosen by that assembly, headed by a voivodeship marshal (marszałek województwa). Voivodeships are further divided into powiats ('counties') and gminas ('communes' or 'municipalities'), the smallest administrative divisions of Poland.
"Following the reform of the administrative structure in 1973-1975, the number of provinces (województwo) was increased from 22 to 49... [I]ncreasing the number of provinces meant the reduction of each in size. In this way Warsaw was able to dilute the political importance of the provincial party chiefs." "Poland", The Encyclopedia Americana, 1986, volume 22, p. 312.
"Local government in Poland is organized on three levels. The largest units, at the regional level, are the województwa ('provinces')..." "Poland", Encyclopædia Britannica, 15th edition, 2010, Macropaedia, volume 25, p. 937.
Professor Paul Best, of Southern Connecticut State University, writes: "[I]n standard dictionaries the Polish word województwo is translated as 'province'." Paul Best, review of Bogdan Horbal, Lemko Studies: A Handbook (2010), in The Polish Review, vol. 58, no. 4 (2013), pp. 125–26.