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Name Lookup Tables Record Layouts

Component ID: #ti1033912980

2020 Redistricting Data Prototype (P.L. 94-171) Name Lookup Tables (NLTs): 2018 End-to-End Test

The 2020 Redistricting Data Prototype (P.L. 94-171) Name Lookup Tables (NLTs): 2018 End-to-End Test are created for Providence County, Rhode Island specifically for use by states to help them prepare for redistricting following the 2020 Census. The Census Redistricting Data Program releases prototype Census data, TIGER/Line shapefiles and maps in advance of the actual releases from the 2020 Census for the purpose of providing states and other stakeholders the opportunity to build their redistricting systems. By doing so, states can load the final 2020 Census geography and data upon receipt in early 2021 and immediately begin the redistricting process.

NLTs will be created for each of the 50 states, the District of Columbia, and Puerto Rico and work in conjunction with the Block Assignment Files (BAFs). Each NLT contains the names and codes of every geographic area of the specific type within the given state. If no records of the geographic area type exist within the state, the NLT will only display the field header. The 2020 Redistricting Data Prototype (P.L. 94-171)NLTs: 2018 End-to-End Test contain data for Providence, RI only.

Component ID: #ti1766964514

File Format

NLTs are pipe (|) delimited text (.txt) files.  The first line of each NLT is the field header.  The 11 types of NLTs and the fields they contain are described below:

 

Geographic Area <entity> Field Layout
Congressional districts CD STATEFP|DISTRICT|NAME|NAMELSAD
State legislative districts - upper SLDU STATEFP|DISTRICT|NAMENAMELSAD
State legislative districts - lower SLDL STATEFP|DISTRICT|NAME|NAMELSAD
Voting districts VTD STATEFP|COUNTYFP|DISTRICT|NAME|NAMELSAD
Elementary school districts SDELM STATEFP|DISTRICT|NAME|NAMELSAD
Secondary school districts SDSEC STATEFP|DISTRICT|NAME|NAMELSAD
Unified school districts SDUNI STATEFP|DISTRICT|NAME|NAMELSAD
Incorporated places INCPLACE STATEFP|PLACEFP|NAME|NAMELSAD
Census designated places CDP STATEFP|PLACEFP|NAME|NAMELSAD
American Indian / Alaska Native / Native Hawaiian areas AIANNH STATEFP|AIANNHCE|NAME|NAMELSAD
Minor Civil Divsions AIANNH STATEFP|COUNTYFP|COUSUBFP|NAME|NAMELSAD

Component ID: #ti1152090152

Field Definitions

Field definitions are as follows:

 

  • STATEFP:  2-character state FIPS code
  • DISTRICT:  variable length code representing the district (i.e., geographic area)
    • CD - 2-character code
    • SLDU - 3-character code
    • SLDL - 3-character code
    • VTD - variable length code of up to 6 characters
    • SDELM - 5-character code
    • SDSEC - 5-character code
    • SDUNI - 5-character code
  • PLACEFP:  5-character place FIPS code
  • AIANNHCE:  4-character American Indian / Alaska Native / Native Hawaiian (AIANNH) area census code
  • COUNTYFP:  3-character county FIPS code
  • NAME:  variable length geographic area name (e.g., Atlanta)
  • COUSUBFP:  5-character county subdivision FIPS code
  • NAMELSAD:  concatenated variable length geographic area name and legal/statistical area description (LSAD) (e.g., Atlanta city)

Component ID: #ti1364672456

2010 Census Name Lookup Tables

The Census Bureau's Redistricting Data Products provide the states and other data users with the small area census data necessary for legislative redistricting.  Among the geographic products disseminated for the 2010 Census are the Block Assignment Files (BAFs) and corresponding Name Look-up Tables (NLTs).

NLTs have been created for each of the 50 states, the District of Columbia, and Puerto Rico and work in conjunction with the BAFs.  Every NLT contains the names and codes of every geographic area of the specific type within the state.  If no records of the geographic area type exist within the state, the NLT will only display the field header.

Component ID: #ti1830762884

File Format

NLTs are pipe (|) delimited text (.txt) files.  The first line of each NLT is the field header.  The 10 types of NLTs and the fields they contain are described below:

Component ID: #ti1264824436

Geographic Area <entity> Field Layout
Congressional districts CD STATEFP,DISTRICT,NAME,NAMELSAD
State legislative districts - upper SLDU STATEFP,DISTRICT,NAME,NAMELSAD
State legislative districts - lower SLDL STATEFP,DISTRICT,NAME,NAMELSAD
Voting districts VTD STATEFP,COUNTYFP,DISTRICT,NAME,NAMELSAD
Elementary school districts SDELM STATEFP,DISTRICT,NAME,NAMELSAD
Secondary school districts SDSEC STATEFP,DISTRICT,NAME,NAMELSAD
Unified school districts SDUNI STATEFP,DISTRICT,NAME,NAMELSAD
Incorporated places INCPLACE STATEFP,PLACEFP,NAME,NAMELSAD
Census designated places CDP STATEFP,PLACEFP,NAME,NAMELSAD
American Indian / Alaska Native / Native Hawaiian areas AIANNH STATEFP,AIANNHCE,NAME,NAMELSAD

Component ID: #ti1154312272

Field Definitions

Field definitions are as follows:


  • STATEFP:  2-character state FIPS code
  • DISTRICT:  variable length code representing the district (i.e., geographic area)
    • CD - 2-character code
    • SLDU - 3-character code
    • SLDL - 3-character code
    • VTD - variable length code of up to 6 characters
    • SDELM - 5-character code
    • SDSEC - 5-character code
    • SDUNI - 5-character code
  • PLACEFP:  5-character place FIPS code
  • AIANNHCE:  4-character American Indian / Alaska Native / Native Hawaiian (AIANNH) area census code
  • COUNTYFP:  3-character county FIPS code
  • NAME:  variable length geographic area name (e.g., Atlanta)
  • NAMELSAD:  concatenated variable length geographic area name and legal/statistical area description (LSAD) (e.g., Atlanta city)

Related Information


REFERENCE FILE

Name Lookup Tables
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