Data Dictionary: | Census 1990 on 2010 Geographies |
Data Source: | U.S. Census Bureau & Social Explorer |
Census 1990 on 2010 Geographies Summary Tape File 3 contains sample data weighted to represent the total population. In addition, the file contains 100-percent counts and unweighted sample counts for total persons and total housing units. Other population and housing items are listed below. Please see the List of Tables chapter for a complete listing.
Selected aggregates and medians also are provided. Data are presented in 193 population tables (matrices) and 99 housing tables (matrices).
Census 1990 on 2010 Geographies Summary Tape File 3 relevant documentation is listed below. Full survey documentation is available here.
When selecting more than one component from the same geographical level, Social Explorer provides a total for these components in the "All Selected Geographies" column. This total is for the available geographies only within the same geographical level. When a value is missing from one or more components from the same geographical level, Social Explorer denotes it with an asterisk (*) in the All Selected Geographies column.
Data provided in this survey contains reallocated data from Census 1990 on 2010 geographies and therefore all variable values are obtained as decimal numbers and presented like decimal numbers in these reports. Variable values are not rounded because totals of variables within some of the tables would not fully match to the original ones. This occurs only for census tracts with very small population sizes. Therefore, variable values are kept as decimal numbers in order to avoid any misunderstanding.
When selecting more than one component from the same geographical level, Social Explorer provides a total for these components in the "All Selected Geographies" column. This total is for the available geographies only within the same geographical level. When a value is missing from one or more components from the same geographical level, Social Explorer denotes it with an asterisk (*) in the All Selected Geographies column.
Data provided in this survey contains reallocated data from Census 1990 on 2010 geographies and therefore all variable values are obtained as decimal numbers and presented like decimal numbers in these reports. Variable values are not rounded because totals of variables within some of the tables would not fully match to the original ones. This occurs only for census tracts with very small population sizes. Therefore, variable values are kept as decimal numbers in order to avoid any misunderstanding.