| Data Dictionary: | Census 1940 Census Tract, County, State and US |
| Data Source: | Digitally transcribed by Inter-university Consortium for Political and Social Research. Edited, verified by Michael Haines. Compiled, edited and verified by Social Explorer. |
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.
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.
