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