This Kerry victory can be attributed to the overwhelmingly Democratic cities of
Philadelphia,
Pittsburgh, and
Erie. Although Kerry-held cities that voted for the Senator by narrow margins assisted him in advancing his margin over President Bush, many political analysts underscored the fact that if Philadelphia were excluded, President
George W. Bush would have won Pennsylvania by a fairly slim margin, with 2,663,748 versus 2,395,890 for Kerry. Although Pennsylvania is closely divided in most elections, it did not vote
Republican in a presidential election from 1992 to
2012. Philadelphia and Pittsburgh were the biggest contributors to Kerry's victory in Pennsylvania. However, many independents in suburban Philadelphia counties (Bucks, Delaware, Montgomery, and somewhat in Chester) voted for Kerry, which may well have been the deciding factor. Kerry also had narrow margins of victory around cities like Allentown, Scranton, Erie, and the traditionally Democratic Pittsburgh suburbs; he also garnered many votes in certain rural areas such as parts of the Poconos and the Laurel Highlands, and in cities like Reading, Johnstown, Harrisburg, and State College. Bush's margins were extremely large in central Pennsylvania and the sparsely populated Northern Tier, with traditional GOP cities such as Lancaster, Lebanon, York, Altoona, Huntingdon, and Williamsport strongly throwing their support behind him. This area, along with rural western Maryland, was the most conservative in the Mid-Atlantic. , this is the last presidential election that the Democratic candidate won
Washington County,
Beaver County and
Fayette County. This is also the last election in which
Dauphin County and
Centre County voted for the Republican candidate. This is also the last time that
Chester County gave a majority to a Republican, although Mitt Romney did win the county with a plurality in 2012. This is the last time Democrats won a majority of congressional districts in the state. ==Results==