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Field NameFull NameDescriptionValueSource
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OBJECTIDOBJECTIDThe unique spatial identifier assigned to each polygon.Integer: 1-3017Automatically assigned in ArcGIS
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2020_COUNTYFP2020 County FIPSFIPS State and County Codes.Integer: 1-1652020 Tiger/LINE shapefile
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2020_County_Name2020 County NameThe name of the county that a 2020 census tract located in.Texthttps://www.census.gov/prod/techdoc/cbp/cbp95/st-cnty.pdf
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City_NameCity NameThe 2020 census tracts that locate in Detroit will be assigned with the value "Detroit"; otherwise, the tract has no value in this field. Detroit; NULL2020 Tiger/LINE shapefile
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2020_GEOID2020 GEOIDThe unique identifier for a 2020 census tract.Long2020 Tiger/LINE shapefile
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2020_NAME2020 NameThe name of a 2020 census tract.Long2020 Tiger/LINE shapefile
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2020_NAMELSAD2020 Name LSADThe LSAD Name of a 2020 census tract.Text2020 Tiger/LINE shapefile
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Changed_in_2020_YNChanged 2020 census tract Yes or NoIf a 2020 census tract has changed from its counterpart in 2010, the tract will be assigned with a "Yes" value; otherwise, it has no value. Yes; NULLIdentified by eyeballing it
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1st Split_NameCheck_YN
1st Split Tract Identified by NameLSAD Yes or No
If a 2020 census tract is created by splitting a 2010 census tract, and this 2010 census tract has not been split before, then this 2020 census tract has a "Yes" value, otherwise it has no value. Yes; NULL
Automatically identified by checking if its NAMELSAD contains ".01" or ".02"
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2nd Split_NameCheck_YN
2nd Split Tract Identified by NAMELSAD Yes or No
If a 2020 census tract is created by splitting a 2010 census tract, and this 2010 census tract has been split before, then this 2020 census tract has a "Yes" value, otherwise it has no value. Yes; NULL
Automatically identified by checking if its NAMELSAD contains ".03" to ".07"
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New_ManualCheck_YNNew Tract Identified by NAMELSAD Yes or NoA New 2020 census tract will have a "Yes" value; otherwise, it has no value. Yes; NULLIdentified by eyeballing it
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2010_GEOID_1Derived from 2010 Tract GEOID 1The GEOID of the 1st 2010 census tract that this 2020 tract is derived from.LongIdentified by eyeballing it
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2010_GEOID_2Derived from 2010 Tract GEOID 2The GEOID of the 2nd 2010 census tract that this 2020 tract is derived from, if exists.LongIdentified by eyeballing it
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2010_GEOID_3Derived from 2010 Tract GEOID 3The GEOID of the 3rd 2010 census tract that this 2020 tract is derived from, if exists.LongIdentified by eyeballing it
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2010_GEOID_4Derived from 2010 Tract GEOID 4The GEOID of the 4th 2010 census tract that this 2020 tract is derived from, if exists.LongIdentified by eyeballing it
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2010_GEOID_5Derived from 2010 Tract GEOID 5The GEOID of the 5th 2010 census tract that this 2020 tract is derived from, if exists.LongIdentified by eyeballing it
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ActionActionThe action that has been taken to create this 2020 census tract.1st Split, 2nd Split, Split, Combined, Expanded, Shrank, New. Note that, "1st Split" and "2nd Split" both are subcategories of the general "Split". A 2020 census tract that can't be identified if it's "1st Split" or "2nd Split" by its census ID, is labeled as "Split".Identified by eyeballing it
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GeometryChange_AutoCheck_YN
Geometry Change AutoCheck Yes or NoWhether a 2020 census tract has a geometry change, compared with the 2010 census tract that has the same GEOID.Yes; NULLAutomatically identified using QGIS
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Size_Difference_in_SqfSize Difference in Square FeetThe size difference between a 2010 census tract and a 2020's that share the same ID. The unit is in the square feet. FloatCalculated in ArcGIS
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Size_Difference_in_SqMSize Difference in Square MileThe size difference between a 2010 census tract and a 2020's that share the same ID. The unit is in the square mile. FloatCalculated in ArcGIS
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