Coat of arms Location of Teglio Teglio Location of Teglio in Italy Show map of Italy Teglio Teglio (Lombardy) Show map of Lombardy Coordinates: 46°10′N 10°4′E﻿ / ﻿46.167°N 10.067°E﻿ / 46.167; 10.067 Country Italy Region Lombardy Province Sondrio (SO) Frazioni Tresenda Government • Mayor Piergiorgio Grolli Area [1] • Total 115.3 km2 (44.5 sq mi) Population (Dec.