TIGER/Line 2017 State Legislative Districts
October 2017 .. new resources for updated roads for geographic reference, statistical mapping, routing logistics/optimization and related operations .. See the 2017 digital map database main page for general information and related geography.
The 2017 digital map database includes many types of files and data. The data are developed in the form of shapefiles and dbase files that may be used directly with the ProximityOne CV XE GIS software at no fee. Perform wide-ranging mapping and geospatial analysis applications using these GIS resources. See more about mapping statistical data.
TIGER/Line Roads Data
This section is focused mainly on the use of the TIGER/Line State Legislative Districts (Upper and Lower) current vintage (2016 election cycle). State legislative district geography and attributes are available in the following shapefiles:
State Legislative District Lower Chamber (SLDL) State-based Shapefile
State Legislative District Upper Chamber (SLDU) State-based Shapefile
State legislative districts are the areas in which voters elect a person to represent them in state or equivalent entity legislatures. Most state legislatures consist of upper (senate—SLDU) and lower (house—SLDL) chambers with separate legislative districts. The Census Bureau first reported data for state legislative districts as part of the 2000 Public Law (P.L.) 94-171 Redistricting Data File for the states that chose to submit legislative district boundaries. Starting with the collection of legislative districts for the 2010 Census in 2006, the Census Bureau updates state legislative district boundaries every two years. State Legislative Districts (2016 Election Year) - All 50 states, plus the District of Columbia and Puerto Rico, participated in Phase 4 of the Census Redistricting Program, as part of P.L. 94-171. They voluntarily provided the Census Bureau with the 2016 election cycle boundaries, codes, and in some cases names for their state legislative districts. States provided updates for their boundaries used in the November 2016 elections for the session that began in January 2017.
These states had changes to their state legislative districts for 2016: Florida (upper house only), Minnesota, Maryland (lower house only), Georgia (lower house only).
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 the lower house of the state legislative districts for either Nebraska or the District of Columbia.
State Legislative District Codes
A unique 3-character census code, identified by state participants, is assigned to each state legislative district upper (senate) and lower (house) within a state. In Connecticut, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Ohio, and Puerto Rico, the state participant did not assign the current state legislative districts to cover all of the state or equivalent area. The code “ZZZ” has been assigned to areas with no state legislative districts defined (usually large water bodies). These unassigned areas are treated as a single state legislative district for purposes of data presentation.
Notes on State Legislative Districts
File Name: tl_2017_
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