Zherdevka (Russian: Же́рдевка) is a town and the administrative center of Zherdevsky District in Tambov Oblast, Russia, located on the Savala River (Khopyor's tributary), 128 kilometers (80 mi) south of Tambov, the administrative center of the oblast. Population: 15,209 (2010 Census); 16,557 (2002 Census); 19,218 (1989 Census).