Pennsylvania Counties Archive

The Pennsylvania Counties Archive details County-level voter turnout statistics for the Commonwealth of Pennsylvania for even-numbered years since 1972.


Data is from America Votes (Washington, D.C: Elections Research Center, Congressional Quarterly). Data shows the voter turnout for all counties in Pennsylvania and for each party that ran in the election. The data traces voter turnout for Presidential elections and Gubernatorial elections falling on midterm years. The spreadsheet also shows the voter turnout percentage for each election.


To calculate voter turnout, we extracted population numbers from the U.S. Census Bureau. The population data presented for the years 1970, 1980, 1990, and 2000 are the exact numbers reported by the U.S. Census Bureau. Voting age populations for the years not defined by the Census are estimates we extrapolated using the change in population from one decade to the next. Population data for the years 2000 – 2004 are estimates from the U.S. Census Bureau website.


Download Pennsylvania Counties Database


The Center for Political Participation at Allegheny College promotes interest and involvement in democratic life. The Voter Turnout Archive is a pilot project to calculate voter turnout statistics at the municipality or township level for all Pennsylvania counties. We are funded by a grant from the Pennsylvania Department of Community and Economic Development.


The records were able to be collected because of the generosity and cooperation of the county election boards.


We gratefully acknowledge assistance on this project from the following County Boards of Elections: Beaver, Butler, Erie, Mercer, Lawrence, Somerset, Venango, and Washington. We thank Larry Sink of the U.S. Census Bureau and Daniel M. Shea, CPP Director, for helpful advice.


Melissa K. Comber, Ph.D., is the Voter Turnout Archive Project Director. Please contact her with questions or comments pertaining to the Voter Turnout Archive project

VTA workers include: Shannon Scotece, Ashlie Louie, Jaclyn Stallard, Mike Folk, Jennifer Berosh, Marco Attisano, Danielle Gray, Dan Conant, Ted Zimmer, and Dan Carik.