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STDTRACT
Standardized tract, alphabetic string
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Description

STDTRACT is a string variable indicating census tract. Census tracts are small geographic units typically located within metropolitan areas that the Census Bureau uses to collect and tabulate census data. When originally established, they were designed to fall within a single county, contain between 2,500-8,000 people and to be as homogeneous in socio-economic characteristics as possible.

Codes

This variable is only available in the 1940 1% file. STDTRACT is a 10-character alphabetic string variable which reports the census tract. Census tracts are small geographic units typically located within metropolitan areas that the Census Bureau uses to collect and tabulate census data. When originally established, they were designed to fall within a single county, contain between 2,500-8,000 people and to be as homogeneous in socio-economic characteristics as possible. Although census tracts were not a part of the original 1940 census data, we were able to include them in the IPUMS by acquiring them from an auxiliary dictionary of 1940 census geography compiled by the National Archives and Records Administration (NARA). Using other geographic information from the 1940 census data, NARA was able to infer census tract. STDTRACT specific variable codes for missing, edited, or unidentified observations, observations not applicable (N/A), observations not in universe (NIU), top and bottom value coding, etc. are provided below if applicable by Census year (and data sample if specified).

STDTRACT Specific Variable Codes

Comparability

STDTRACT only exists in the 1940 1% sample. Although census tracts were not a part of the original 1940 census data, we were able to include them in the IPUMS by acquiring them from an auxiliary dictionary of 1940 census geography compiled by the National Archives and Records Administration (NARA). Using other geographic information from the 1940 census data, NARA was able to infer census tract. The standardized geography string variables included in the 1940 file are: STDTRACT, STDMCD, STDWARD, STDED, STDCITY and STDCNTY. These standardized string variables also correspond to the published population reports from the 1940 census. Unlike most of the other standardized geography string variables, there is no corresponding original string variable for tract as it was not part of the original 1940 census data file.

Universe

  • 1940: All households and group quarters.

Availability

United States
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Puerto Rico
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Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.