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Dave Leip's Atlas of U.S. Presidential Elections

U.S. Elections Data and visualizations

About this resource

Dave Leip's Atlas of U.S. Presidential Elections is the work of a single individual. According to the author, it was started as a paper hobby after the 1992 Presidential Election. Dave Leip uses Excel as a tool to produce the pie charts and to help build the county-level maps.

There are two distinct elements:

  • The web site, which is free, and provides maps and data of elections at the national and state levels
  •  County-level data sets, which must be purchased, and come as Excel files. UO Libraries currently has:
    • Presidential General Election results 2000-2020
    • Senate General Election results 2000-2020
    • Representative General Election results (county and Congressional District) 2010-2020
    • Turnout & Registration Data for the years 2000-2020

Important note: Dave Leip's election maps use RED for the Democratic Party and BLUE for the Republican Party. See his FAQ for more information.

Election Data Spreadsheets

UO Libraries has purchased a number of data spreadsheets from Dave Leip, with Presidential, Senate, and Representative election returns, and voter turnout & registration data, down to the county level.

Important information about accessing these:

  1. You must be on campus or signed on to the campus VPN to access these datasets.
  2. Once you are in a record, go to Contents (on the right) and click on on one of the types of data. Then click one of the options under Download, above
    • For the complete Excel spreadsheet, click on the one ending in "- Vote Data", then download
  • More information on Dave Leip's Voter Registration & Turnout data spreadsheets.


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Kathy Stroud
University of Oregon Libraries
1299 University of Oregon
Eugene, OR 97403-1299