Dave Leip: Senate Election Data

Each election year's dataset includes national level spreadsheets, state level spreadsheets, and county level spreadsheets. The national level spreadsheets include information on candidates and party ballot listing by state; vote data by state, county, and town; graphs (pie charts for each states); party data sorted by strength at the state level for the major parties; statistics showing closest states, max, min, counties, etc.; and a list of data sources used to compile the spreadsheets.

The state and county level spreadsheets include information on parties and vote counts. Suggested citation: Leip, David. Dave Leip's Atlas of U.S. Presidential Elections: Senate Election Data. uselectionatlas.org (date used).