In 1940, during the Nazi Occupation of Poland, German authorities established a ghetto in Mogielnica to confine, persecute and exploit its Jewish population. The ghetto was demolished on February 28, 1942, when its 1,500 inhabitants were transported in cattle trucks to the Warsaw Ghetto, the largest in all of Nazi-occupied Europe, with over 400,000 Jews crowded into an area of . From there, most victims were sent to the Treblinka extermination camp. The Nazis demolished the 18th-century Jewish cemetery located on the left side of the road to Grójec, near Przylesie Street, and used its headstones for pavement. A monument now stands in its place.