It is estimated that Henryk Sławik helped as many as 30,000 Polish refugees in Hungary, approximately 5,000 of them Jews. After 1948, the communist authorities of both Poland and Hungary did commemorate his deeds and pointed out his importance for humanity. According to Maria Zawadzka of the Museum of the History of Polish Jews, Henryk Sławik was posthumously awarded the title of Righteous Among the Nations by Yad Vashem Commemorative Authority already on 26 January 1977, but achieved wide recognition only after Zvi Henryk Zimmerman, his wartime associate and a distinguished Israeli politician, popularized his efforts in the 1990s.