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TIGER/Line Shapefiles and TIGER/Line Files Technical Documentation

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TIGER/Line Shapefiles and TIGER/Line Files Technical Documentation

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2020

Technical Documentation

Record Layout for 2020 Census Tabulation Blocks Shapefile with 2020 Census Population and Housing Unit Counts

 

Field Length Type Description
STATEFP20 2 String 2020 Census state FIPS code
COUNTYFP20 3 String 2020 Census county FIPS code
TRACTCE20 6 String 2020 Census tract code
BLOCKCE20 4 String 2020 Census tabulation block number
GEOID20 15 String Census block identifier; a concatenation of 2020 Census state FIPS code, 2020 Census county FIPS code, 2020 Census tract code, and 2020 Census block number
NAME20 10 String 2020 Census tabulation block name; a concatenation of ‘Block’ and the tabulation block number
MTFCC20 5 String MAF/TIGER Feature Class Code (G5040)
UR20 1 String Reserved for 2020 Census urban/rural indicator
UACE20 5 String Reserved for 2020 Census urban area code
UATYPE20 1 String Reserved for 2020 Census urban area type
FUNCSTAT20 1 String 2020 Census functional status
ALAND20 14 Number 2020 Census land area
AWATER20 14 Number 2020 Census water area
INTPTLAT20 11 String 2020 Census latitude of the internal point
INTPTLON20 12 String 2020 Census longitude of the internal point
HOUSING20* 9 Number 2020 Census housing unit count
POP20* 9 Number 2020 Census population count

*Population counts from the 2020 Census are subjected to random noise as part of the Disclosure Avoidance System (DAS) efforts to protect the privacy of our survey respondents.

2020 TIGER/Line Shapefiles

pdf Full document [4.0 MB]
pdf Chapter 1—Legal Disclaimer, Citation Information and Contact [<1.0 MB]
pdf Chapter 2—Introduction [<1.0 MB]
pdf Chapter 3—About the 2020 TIGER/Line Shapefiles [<1.0 MB]
pdf Chapter 4—Geographic Shapefile Concepts Overview [<1.0 MB]
pdf Chapter 5—Relationship File Concept Overview [<1.0 MB]
pdf Chapter 6—Instructions for Downloading the TIGER/Line Shapefiles [1.4 MB]
pdf Chapter 7 —Useful Links [<1.0 MB]
pdf Appendix A—Pseudo-School Districts [<1.0 MB]
pdf Appendix B—Feature Name Directions [<1.0 MB]
pdf Appendix C—Feature Name Qualifiers [<1.0 MB]
pdf Appendix D—Feature Name Types [<1.0 MB]
pdf Appendix E—2020 MAF/TIGER Feature Class Codes (MTFCC) Definitions [<1.0 MB]
pdf Appendices F - R—Record Layouts [<1.0 MB]
pdf Appendix S—Shapefile and Relationship File Names [<1.0 MB]
pdf Appendix T—Glossary [<1.0 MB]

2020 Census Redistricting Data (P.L. 94-171) Shapefiles

pdf Full document [3.0 MB]
pdf Chapter 1—Legal Disclaimer, Citation Information and Contact [<1.0 MB]
pdf Chapter 2—Introduction [<1.0 MB]
pdf Chapter 3—About the 2020 Census Redistricting Data (P.L. 94-171) TIGER/Line Shapefiles [<1.0 MB]
pdf Chapter 4—Geographic Shapefile Concepts Overview [<1.0 MB]
pdf Chapter 5—Relationship File Concept Overview [<1.0 MB]
pdf Chapter 6—Useful Links [<1.0 MB]
pdf Appendix A—Pseudo-School Districts [<1.0 MB]
pdf Appendix B—Feature Name Directionals [<1.0 MB]
pdf Appendix C—Feature Name Qualifiers [<1.0 MB]
pdf Appendix D—Feature Name Types [<1.0 MB]
pdf Appendix E—MAF/TIGER Feature Class Codes (MTFCC) Definitions [<1.0 MB]
pdf Appendix F-V—Record Layouts [<1.0 MB]
pdf Glossary [<1.0 MB]

 

 

Page Last Revised - December 5, 2022
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