Population and Housing Censuses Salamanca Dwellings by municipalities (with over 50,000 inhabitants or capitals), type of housing and year of construction (aggregate) of the building Units: dwellings Total Before 1900 From 1900 to 1920 From 1921 to 1940 From 1941 to 1950 From 1951 to 1960 From 1961 to 1970 From 1971 to 1980 From 1981 to 1990 From 1991 to 2001 From 2002 to 2011 No data recorded 2.1 Total main dwellings 37274 Salamanca 64,588 193 83 153 1,135 4,433 11,761 17,272 7,564 8,886 11,019 2,089 2.21 Secondary dwellings 37274 Salamanca 14,907 45 .. .. 440 870 2,877 4,966 1,289 2,369 1,911 142 2.22 Empty dwellings 37274 Salamanca 12,954 47 .. 51 533 1,541 2,365 2,606 1,039 1,375 3,236 162 Notes: Source: National Statistics Institute