Voting Machines, Counties, and Number of Voters Using Each System

November 2012 Election; as of October 22, 2012

primary / accessible 
Type Total Counties Total Voters Counties Used
Danaher DRE full-face 6 2,446,106 Berks, Bucks, Dauphin, Delaware, Monroe, Philadelphia
Sequoia Advantage DRE full-face 2 763,941 Montgomery, Northampton
  DRE full-face 8 3,210,047  
Sequoia Edge DRE touchscreen, paged 1 280,281 York
ES&S iVotronic DRE touchscreen, paged 24 2,585,681 Allegheny, Beaver, Butler, Cambria, Cameron, Clearfield, Clinton, Columbia, Crawford, Cumberland, Elk, Erie, Forest, Greene, Jefferson, Lawrence, Lebanon, Luzerne, McKean, Mercer, Perry, Venango, Westmoreland, Wyoming
Diebold-Premier TSX DRE touchscreen, paged 16 912,272 Armstrong, Bradford, Carbon, Clarion, Lehigh, Lycoming, Northumberland, Pike, Potter, Schuylkill, Somerset, Sullivan, Tioga, Union, Warren, Washington,
Hart Intercivic eSlate DRE select-wheel, paged 1 85,316 Blair
  DRE, paged 42 3,863,550  
ES&S M100 / AutoMARK optical scan, precinct count / accessible ballot marker 11 577,926 Adams, Centre, Franklin, Fulton, Huntingdon, Indiana, Juniata, Lackawanna, Mifflin, Montour, Snyder
ES&S M650 / AutoMARK optical scan, central count / accessible ballot marker 2 58,754 Susquehanna, Wayne
Hart Intercivic eScan / eSlate digital scan, precinct count / accessible DRE (no paper) 3 438,729 Bedford, Fayette, Lancaster
ES&S M100 / iVotronic optical scan, precinct count / DRE (no paper) 1 338,177 Chester
  Voter-Marked & Verified Paper Ballots (optical/digital scan) 17 1,413,586  


Source of Voter Registration Data & Map: PA Department of State