This shapefile was obtained from the Texas Legislative Council and processed by members of the Voting Rights Data Institute (VRDI) and the Metric Geometry and Gerrymandering Group (MGGG). VRDI was a 2018 summer intensive sponsored by MGGG at Tufts and MIT, with major support from a Bose Research Grant at MIT and from the Jonathon M. Tisch College of Civic Life at Tufts.
The shapefile is currently available for download here: https://people.csail.mit.edu/ddeford/TX_vtds.zip.
Election data was downloaded from the Texas Legislative Council’s Texas Redistricting website. In addition to the voting tabulation district shapefile and election data CSV files, shapefiles for state senate districts (PlanS172) and state house districts (PlanH407) were also downloaded. A 115th U.S. Congressional district shapefile was obtained from the Census. All demographic information was compiled by the Texas Legislative Council using 2010 Census data.
The shapefile topology was checked and minor corrections made using the check_shapefile_connectivity.py script in MGGG's Preprocessing Github repository. Roundoff was used to assign voting tabulation districts with U.S. congressional, state senate, and state house districts.
CNTYVTD
: VTD unique identifierVTD
: VTD nameWHITE
: 2010 White populationOTHER
: 2010 Other race populationHISPANIC
: 2010 Hispanic populationTOTPOP
: 2010 Total populationVAP
: 2010 Total voting age populationBLACK
: 2010 Black populationBLKHISP
: 2010 Black hispanic populationWVAP
: 2010 White voting age populationHISPVAP
: 2010 Hispanic voting age populationBHVAP
: 2010 Black hispanic voting age populationBVAP
: 2010 Black voting age populationOTHVAP
: 2010 Other race voting age populationCOUNTY
: County nameFIPS
: County FIPS codePRES12R
: Number of votes for 2012 Republican presidential candidatePRES12D
: Number of votes for 2012 Democratic presidential candidateSEN12R
: Number of votes for 2012 Republican senate candidateSEN12D
: Number of votes for 2012 Democratic senate candidateTOTVR12
: Number of registered voters in 2012 general electionTOTTO12
: Number of ballots cast in 2012 general electionSEN14R
: Number of votes for 2014 Republican senate candidateSEN14D
: Number of votes for 2014 Democratic senate candidateGOV14R
: Number of votes for 2014 Republican gubernatorial candidateGOV14D
: Number of votes for 2014 Democratic gubernatorial candidateTOTVR14
: Number of registered voters in 2014 general electionTOTTO14
: Number of ballots cast in 2014 general electionPRES16D
: Number of votes for 2016 Democratic presidential candidatePRES16R
: Number of votes for 2016 Republican presidential candidateTOTVR16
: Number of registered voters in 2016 general electionTOTTO16
: Number of ballots cast in 2016 general electionUSCD
: U.S. Congressional District IDSEND
: Texas State Senate District IDHD
: Texas State House District IDAREA
: Area of vtd in square kilometersPERIM
: Perimeter of vtd in kilometers
This shapefile uses a NAD83/Texas State Mapping System projection (EPSG: 3081).
We give this shapefile an A rating. All data was obtained from the state government and was processed by MGGG staff.