Editing Columbia County, Pennsylvania (section)

=== Voter registration ===
As of February 6, 2024, there were 39,054 registered voters in Columbia County.<ref>{{cite web |last=Pennsylvania Department of State |date=February 5, 2024 |title=Voter registration statistics by county |url=https://www.dos.pa.gov/VotingElections/OtherServicesEvents/VotingElectionStatistics/Pages/VotingElectionStatistics.aspx |access-date=February 6, 2024 |website=dos.pa.gov}}</ref>
* [[Republican Party (United States)|Republican]]: 20,820 (53.31%)
* [[Democratic Party (United States)|Democratic]]: 12,268 (31.41%)
* [[Independent (United States)|Independent]]: 4,360 (11.16%)
* [[Third party (United States)|Third Party]]: 1,606 (4.11%)
{{Pie chart|thumb=left|color1={{party color|Republican Party (United States)}}|color2={{party color|Democratic Party (United States)}}|color3={{party color|Independent (United States)}}|color4={{party color|Green Party (United States)}}|caption=Chart of Voter Registration|label1=[[Republican Party (United States)|Republican]]|label2=[[Democratic Party (United States)|Democratic]]|label3=[[Independent (United States)|Independent]]|label4=[[Third party (United States)|Other Parties]]|value4=4.11|value3=11.16|value2=31.41|value1=53.31}}

While the county registration tends to be evenly matched between Democrats and Republicans, the county trends Republican in statewide elections. [[Donald Trump]] carried the county by more than 30 points in both 2016 and 2020. While [[John McCain]] received 51.6% of its vote to 47.1% for [[Barack Obama]], this was a far-closer margin than the 20 points that [[George W. Bush]] carried it by in 2004. Each of the three row-office statewide winners carried Columbia in 2008. In 2006, Democrat [[Bob Casey, Jr.|Bob Casey Jr.]] received 51% of its vote when he unseated incumbent Republican US Senator [[Rick Santorum]] and [[Ed Rendell]] received 50.6% of the vote against [[Lynn Swann]].

For many years Columbia County was represented in the State House by a conservative Democrat in the 109th district until [[John Gordner]] changed parties to Republican in 2001. He was elected to the State Senate in 2003 and succeeded by Republican [[David R. Millard]]. Columbia is in the 27th Senate district and 11th Congressional district.