- Election Results -- US Counties https://team.carto.com/u/michellemho-carto/dataset/election_2016_counties
- Education by Race -- US Counties https://observatory.carto.com/tables/education_by_race_county/public/map
Download a Shapefile for US Counties
- US County Shapefile http://www2.census.gov/geo/tiger/GENZ2015/shp/cb_2015_us_county_500k.zip