Record of American Democracy (ROAD)
Access to data sets of election returns from 1984-1990 including socioeconomic summaries and demographic measures of the American public. Covers every state in the U.S., including some off-year elections. Includes every election at and above State House, along with party registration and other variables, in each state for the roughly 170,000 precincts nationwide. The collection also includes geographic boundary files so users can easily draw maps with the data. Maintained by Harvard University.