|Elections in Pennsylvania|
Incumbent Democrat Simon Cameron, who was elected in 1845, was not a candidate for re-election to another term. The Pennsylvania General Assembly, consisting of the House of Representatives and the Senate, convened on January 10, 1849, to elect a new Senator to fill the term beginning on March 4, 1849. Three ballots were recorded. The results of the third and final ballot of both houses combined are as follows:
|Free Soil||Thaddeus Stevens||3||2.26|
- "U.S. Senate Election - 10 January 1849" (PDF). Wilkes University. Retrieved 22 December 2013.
- Pennsylvania Election Statistics: 1682-2006 from the Wilkes University Election Statistics Project
| Pennsylvania U.S. Senate election (Class III)