TIGER/Line Shapefiles and TIGER/Line Files Technical Documentation
TIGER/Line Shapefiles and TIGER/Line Files Technical Documentation
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
2020 Census Redistricting Data (P.L. 94-171) Shapefiles
Related Information
Page Last Revised - September 17, 2025