33016 · Asturias

Castrillón

2025 population21,998

Area55.5 km²

Density396.4 / km²

2024 population22,124

2024–2025 change-0.57%

Source and methodology

INE municipal register, 2025, definitive data. Asturian display forms come from SITPA cartography; indicators without official coverage remain empty.

Official Principado SITPA cartography, CC BY 4.0.