Collection Information for the State Legislative Districts Lower Chamber State-Based TIGER/Line Shapefiles, Current

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation.

State Legislative Districts (SLDs) are the areas from which members are elected to State legislatures. The SLDs embody the upper (senate) and lower (house) chambers of the state legislature. Nebraska has a unicameral legislature and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation; there are no data by SLDL for either Nebraska or the District of Columbia. A unique three-character census code, identified by State participants, is assigned to each SLD within a state. In Connecticut, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Ohio, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDs to cover all of the state or state equivalent area. In these areas with no SLDs defined, the code "ZZZ" has been assigned, which is treated as a single SLD for purposes of data presentation.

The most recent state legislative district boundaries collected by the Census Bureau are for the 2018 election year, and were provided by state-level participants through the RDP. The Census Bureau holds the 2018 state legislative districts until the postcensal state legislative plans for the 2022 state legislatures are collected.

Data and Resources

Field Value
access_constraints ["Access Constraints: None", "Use Constraints:The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source.\n The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest."]
bbox-east-long 179.859681
bbox-north-lat 71.439786
bbox-south-lat -14.601813
bbox-west-long -179.231086
collection_metadata true
contact-email geo.geography@census.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2021"}]
frequency-of-update notPlanned
graphic-preview-description URL for the TigerWeb Mapping Service
graphic-preview-file https://tigerweb.geo.census.gov/arcgis/services/TIGERweb/tigerWMS_Current/MapServer/WmsServer?REQUEST=GetMap&SERVICE=WMS&VERSION=1.3.0&LAYERS=_018_State_Legislative_Districts_-_Lower20349,_018_State_Legislative_Districts_-_Lower_Labels7384&STYLES=default,default&FORMAT=image/svg+xml&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&CRS=EPSG:4326&BBOX=+38.0389,-85.6885,+38.1528,-85.4423&WIDTH=256&HEIGHT=256
graphic-preview-type URL
guid collection_tl_2021_sldl.shp.iso.xml
licence []
metadata-date 2021-06-01
metadata-language eng
metadata_type geospatial
old-spatial {"type": "Polygon", "coordinates": [[[-179.231086, -14.601813], [179.859681, -14.601813], [179.859681, 71.439786], [-179.231086, 71.439786], [-179.231086, -14.601813]]]}
progress completed
resource-type series
responsible-party [{"name": "U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Spatial Data Collection and Products Branch", "roles": ["publisher"]}]
spatial {"type": "Polygon", "coordinates": [[[-179.231086, -14.601813], [179.859681, -14.601813], [179.859681, 71.439786], [-179.231086, 71.439786], [-179.231086, -14.601813]]]}
spatial_harvester true
temporal-extent-begin 2020-06
temporal-extent-end 2021-05
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • geo
  • geoss
  • governmental-units-and-administrative-and-statistical-boundaries-theme
  • legislative-district
  • national
  • national-geospatial-data-asset
  • ngda
  • ngda-portfolio-themes
  • ngdaid91
  • north-america
  • polygon
  • state-or-equivalent-entity
  • united-states
  • us
isopen False
metadata_created 2025-11-21T04:13:37.897744
metadata_modified 2025-11-21T04:13:37.897748
notes The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. State Legislative Districts (SLDs) are the areas from which members are elected to State legislatures. The SLDs embody the upper (senate) and lower (house) chambers of the state legislature. Nebraska has a unicameral legislature and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation; there are no data by SLDL for either Nebraska or the District of Columbia. A unique three-character census code, identified by State participants, is assigned to each SLD within a state. In Connecticut, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Ohio, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDs to cover all of the state or state equivalent area. In these areas with no SLDs defined, the code "ZZZ" has been assigned, which is treated as a single SLD for purposes of data presentation. The most recent state legislative district boundaries collected by the Census Bureau are for the 2018 election year, and were provided by state-level participants through the RDP. The Census Bureau holds the 2018 state legislative districts until the postcensal state legislative plans for the 2022 state legislatures are collected.
num_resources 4
num_tags 17
title Collection Information for the State Legislative Districts Lower Chamber State-Based TIGER/Line Shapefiles, Current