In January 1944 the camp was transformed into a concentration camp (Konzentrationslager Plaszow bei Krakau). KL Plaszow was also a transit camp for the Jews from Slovakia and Hungary transported to KL Auschwitz. Prisoners from the camps in the districts of Lublin and Radom had been transported there as well since spring 1944. From KL Plaszow prisoners were transported to labour and concentration camps in the General Government within the Third Reich area.
It is estimated that throughout the period of the camp activity c.a. 30,000 people were imprisoned there, and the approximate number of its victims is 5,000. These are the victims of executions carried out in three execution places within the camp area. Prisoners from Krakow’s Gestapo prison were shot dead there as well.
In the peak period (mid 1944) the camp area was inhabited by c.a. 25,000 prisoners, and c.a. 200 buildings were situated there. These were prison and production barracks, utility buildings, camp infrastructure buildings, houses and flats occupied by the crew. At that time the camp area covered 80 ha. August marked the beginning of KL Plaszow camp liquidation. The Germans started transferring prisoners and the camp infrastructure (some barracks, workshop equipment, etc.). It was on 14th January 1945 that the last group of c.a. 600 prisoners of KL Plaszow left the camp on foot heading Oświęcim. From 18th January until October 1945 the Red Army was stationed in the camp area, devastating the former camp area. On their withdrawal, the camp became available for anyone, and the devastation process was advancing. In 2016 we can only find sparse traces which indicate the existence of KL Plaszow.