Siero

Siero
Municipality
The town hall at La Pola Siero
Flag Coat of arms
Location of Siero
Siero Location in Spain
Coordinates: 43°23′N 5°39′W / 43.383°N 5.650°W / 43.383; -5.650
Country	Spain
Autonomous community	Asturias
Province	Asturias
Comarca	Oviedo
Capital	Pola de Siero
Government
• Alcalde	Ángel García González (PSOE)
Area
• Total	211.60 km2 (81.70 sq mi)
Elevation	0 m (0 ft)
Population  (2023)
• Total	52,194
• Density	250/km2 (640/sq mi)
Demonym	sierense
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Postal code	33510
Official language(s)	Asturian
Website	Official website

Siero is a municipality of the autonomous community of Asturias, in northern Spain. With a population of 52,194 as of 2023,^[1] Siero is the fourth most populous municipality in Asturias. It has a total of 29 parishes, with the largest being Lugones; its capital parish is La Pola Siero. It is located centrally within Asturias, and the northernmost point of Siero is about 10 km from Asturias' largest city, Gijón, and the shores of the Cantabrian Sea.