Derinkuyu ("deep well") is a town and district of Nevşehir Province in the Central Anatolia region of Turkey. According to 2010 census, population of the district is 22,114 of which 10,679 live in the town of Derinkuyu. The district covers an area of 445 km (172 sq mi), and the average elevation is 1,300 m (4,265 ft), with the highest point being Mt. Ertaş at 1,988 m (6,522 ft).