Populated places in Devrek District

thumb|right| Devrek square Devrek is a town in Zonguldak Province in the Black Sea Region of Turkey. It is the seat of Devrek District. Its population is 27,444 (2022). It was founded as Hamidiye, in the sanjak of Bolu. Devrek was incorporated into the Zonguldak Province on May 14, 1920. The mayor is Özcan Ulupınar (AKP).

Çaydeğirmeni is a town (belde) in the Devrek District, Zonguldak Province, Turkey. Its population is 7,034 (2022). It is situated in the valley of Alpaslan creek, a tributary of Yenice River. It is north east of Devrek. The area around Çaydeğirmeni was inhabited from the 4th century BC (late Hellenistic period). The settlement was a stop on an ancient caravan route. The present town was founded in 1993 after a merger of two villages named Kemerler and Kaypaklar.