About the Harvard Election Data Archive
This archive contains data on election results, voting behavior, and electoral politics, with particular focus on the United States. The core data for the archive are state, county and district level election returns for all recent state and federal elections in the United States.
To receive e-mail updates about the status of the archive and new data releases, e-mail your name and institutional affiliation to heda@gov.harvard.edu.
The Harvard Election Data Archive is sponsored by the Sloan Foundation, the Dean of the Faculty of Arts and Sciences at Harvard University, and the Institute for Quantitative Social Science.
Thank you to our colleagues Michael McDonald, Nathaniel Persily, and David Bradlee for their help with data collection.
Redistricting Software | Redistricting Resources |
Dave's Redistricting | DrawCongress.org (Columbia Law School) |
Public Mapping Project | Center for Geographic Analysis (Harvard University) |
WorldMap |
Latest Updates
- Alaska shapefile and election data posted. (12/3)
- Wyoming shapefile and election data posted. (12/3)
- North Dakota shapefile and election data posted. (12/3)
- South Dakota shapefile and election data posted. (12/3)
- Washington shapefile and election data posted. (12/3)
- Hawaii shapefile and election data posted. (12/3)
- Vermont shapefile and election data posted. (10/1)
- Louisiana shapefile and election data posted. (9/30)
- Delaware shapefile and election data posted. (9/30)
- Alabama shapefile and election data posted. (9/29)
- Florida shapefile and election data posted. (9/29)
- Missouri shapefile and election data posted. (9/29)
- Colorado shapefile and election data posted. (9/16)
- Mississippi shapefile and election data posted. (9/16)
- Nevada shapefile and election data posted. (9/14)
- Kansas shapefile and election data posted. (9/14)
- Iowa shapefile and election data posted. (9/14)
- Idaho shapefile and election data posted. (9/13)
- Pennsylvania shapefile and election data posted. (8/1)
- Arizona shapefile and election data posted. (8/1)
- Nebraska shapefile and election data posted. (8/1)
- New York shapefile and 2010 election data posted. (7/19)
- New Jersey shapefile and election data posted. (6/22)
- New Hampshire shapefile and election data posted. (6/21)
- Connecticut shapefile and voter registration data posted. (6/21)
- Massachusetts shapefile and voter registration data posted. (6/21)
- Tennessee shapefile and election data posted. (6/21)
- Indiana shapefile and election data updated. (6/14)
- Read our analysis of the Texas Congression Redistricting Plan C141, which was passed by the Texas State Senate on June 6. (6/13)
- New Mexico shapefile and election data posted. (6/8)