2020 Cartographic Boundary File (KML), Current State Legislative District-Upper Chamber for Michigan, 1:500,000

Description

The 2020 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. 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 generalized boundaries in this file are based on the most recent state legislative district boundaries collected by the Census Bureau for the 2018 election year and provided by state-level participants through the RDP.

Resources

Name Format Description Link
33 The file naming convention for the cartographic boundary files. https://www2.census.gov/geo/tiger/GENZ2020/2020_file_name_def.pdf
33 General description of the cartographic boundary files and their appropriate use. https://www2.census.gov/geo/tiger/GENZ2020/description.pdf
57 The cartographic boundary files are simplified representations of selected geographic areas specifically designed for small scale thematic mapping. These files contain simplified extracts of selected geographic areas from the U.S. Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database. https://www2.census.gov/geo/tiger/GENZ2020/kml/cb_2020_26_sldu_500k.zip
55 Entity and attribute file https://meta.geo.census.gov/data/existing/decennial/GEO/CPMB/boundary/2020/kml/19110/cb_2020_26_sldu_500k.kml.ea.iso.xml

Tags

  • generalized
  • michigan
  • mi
  • 2020
  • state legislative district
  • kml
  • cartographic boundary
  • upper chamber

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