From 1941 to 1944, Crvenka was under Axis occupation and was attached to the Horthy's Hungary. In 1944, the Soviet Red Army and Yugoslav Partisans liberated Crvenka and it was included in the autonomous province of Vojvodina within the new communist Yugoslavia. After 1945, Vojvodina was part of the People's Republic of Serbia within Yugoslavia. At the end of World War II, the ethnic German population was expelled from Crvenka, which was then populated by 4,383 people, mostly Serbs of Bosnia and Herzegovina and Montenegro. In 1948, these people comprised 63.7% of the population.