2021 Polish census

The results of the Polish census of 2021 (officially, the National Population and Housing Census 2021, Narodowy Spis Powszechny 2021) were published in 2023. Data was gathered from April 1 to September 30 (the previously planned duration from April 1 to June 31 was extended because of enduring COVID-19 policy). The point of reference for the census was set on March 31, 2021.

Censuses in Poland are conducted every 10 years, the previous census was the Polish census of 2011. The next census will be the Polish census of 2031.

Religions
The number of declared Catholics decreased to 27.1 million (71%), down from 33.7 million (88%) in the 2011 census.