According to the final results of the National Population and Housing Census 2021, the population in Opolskie Voivodship amounted to 954.1 thousand people and decreased by 6.1% compared to the results of the Census 2011. There were 186.2 thousand buildings in the voivodship, in which 361.0 thousand dwellings were located. In relation to 2011, their number increased by 6.2% and by 4.9%, respectively.