Andros, or Andro (Greek: Άνδρος), an island of the Greek archipelago, the most northerly of the Cyclades, approximately 10 km (6 miles) south east of Euboea, and about 3 km (about 2 miles) north of Tinos. It is nearly 40 km (25 miles) long, and its greatest breadth is 16 km 10 miles. Its surface is for the most part mountainous, with many fruitful and well-watered valleys. Andros, the capital, on the east coast, contained about 2000 inhabitants in 1900. The island had about 18,000 inhabitants in (1900). The 1991 census read 8,781. According to the latest Greek census of 2001, the town of Andros still contained 1,508 inhabitants, and the island's total was 10,009. The island is comprised of the municipalities of Andros (pop. 4,107), Korthio (pop. 2,547), and Ydrousa (pop. 3,355). Their combined land area is 380.041 km². The largest towns are Ándros, Gávrio, Bátsi, and Órmos Korthíou.