Monterrubio de Armuña is a village and municipality in the province of Salamanca, western Spain, part of the autonomous community of Castile-Leon. It is located 7 kilometres (4.3 mi) from the provincial capital city of Salamanca and has a population of 1,353 people.
The municipality covers an area of 10.97 km2 (4.24 sq mi).
It lies 800 metres (2,600 ft) above sea level.
The postal code is 37798.