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Data Dictionary: Census 1960 Tracts Only Set
you are here: choose a survey survey data set table variable details
Data Source: Social Explorer & U.S. Census Bureau - DUALabs
Universe: Occupied and Vacant Housing Units
Variable Details
T180. Year Structure Built
Universe: Occupied and Vacant Housing Units
T180_004 Built Before 1940
Percent base:
Total occupied and vacant units (SE:T180_001)
Aggregation method:
Addition
Formula used to compute this variable:
Return_Value = ORG:T046_004
Variables used in the formula:
ORG:T046_004
Total occupied and vacant units: Year Structure Built: Before 1940
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; U.S. Censuses of Population and Housing: 1960. Census Tracts. Final Report PHC(1)-11. U.S. Government Printing Office, Washington, D.C., 1962.
  Census Tract Data, 1940-1970: Elizabeth Mullen Bogue File -> Census Tracts -> Housing Characteristics -> Year structure built
Year structure built
Year built refers to the date the original construction of the structure was completed, not to any later remodeling, addition, or conversion.

The figures on the number of units built during a given period do not necessarily represent the number of housing units added to the inventory during that period. The figures represent the number of units constructed during a given period plus the number created by conversions in structures originally built during that period, minus the number lost in structures built during the period. Losses occur through demolition, fire, flood, disaster, and conversion to nonresidential use or to fewer housing units.