Series Information File for the 2017 TIGER/Line Shapefile, Current State Legislative District (SLD) Lower Chamber State-based

Description

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 boundaries of the 2016 State legislative districts were provided by state-level participants through the RDP and reflect the districts used to elect members in or prior to the November 2016 election.

Resources

Name Format Description Link
52 This web mapping service contains the layer for state legislative districts - lower chamber. Since this layer displays at scales of 1:2311162 or greater, adjusting the BBox coordinates in the URL is necessary https://tigerweb.geo.census.gov/arcgis/services/TIGERweb/tigerWMS_ACS2017/MapServer/WMSServer
0 https://www2.census.gov/geo/tiger/TIGER2017//SLDL
55 tl_2017_sldl.shp.ea.iso.xml https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/TIGER2017/sldl/tl_2017_sldl.shp.ea.iso.xml
21 Should be used for most mapping projects--this is our most comprehensive dataset. Designed for use with GIS (geographic information systems). https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html
23 This Rest Service contains the state legislative districts - lower chamber layer https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Legislative/MapServer

Tags

  • united states
  • polygon
  • state or equivalent entity
  • u.s.
  • legislative district

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