Salamanca is one of the 21 districts that form the city of Madrid, Spain. Salamanca is located to the northeast of the historical center of Madrid.
Salamanca lies east of the district of Chamberí, south of Chamartín, and north of Retiro. Salamanca counts approximately 151.000 inhabitants.
Wikipedia https://en.wikipedia.org/wiki/Salamanca_(Madrid)
Coordinates 40°25'37.362" N -3°40'50.169" E
