EN
Unemployment in Poland in the interwar period was a mass phenomenon of cyclical and structural types. It constituted one of the important problems to solve and had both economic and psychosocial negative consequences. Location of the population unemployed and their families was very difficult. Public aid was given. Population censuses provide valuable and detailed data on population, including the unemployed. The quality of these data in the interwar period in Poland can be assessed positively in terms of relevance, coherence, comparability in time and space, accessibility and clarity, and worse in terms of timeliness and accuracy.