Republicans accounted for nearly all new voter registrations in Kentucky during December 2025, underscoring a years-long shift in the state's partisan makeup as the 2026 election season approaches.

According to Kentucky Secretary of State Michael Adams, Republican registration grew by 5,690 voters in December, accounting for 86 percent of new voter registrations as Kentucky's voter rolls expanded by 6,550 overall.

"This shows the importance of our primary elections, and we hope for a solid turnout in May," Adams stated.

The December surge marked the latest chapter in a long-term realignment of Kentucky's electorate. Republicans now comprise 47.8 percent of registered voters with 1,601,098 registered Republicans, while Democrats represent 41.1 percent of the electorate with 1,375,378 voters. Over the four-year period from December 2021 to December 2025, Democratic registration declined by 250,896 voters, or 15.4 percent, while Republican registration increased by 9,225 voters.

Between December 2021 and December 2025, registered Republicans increased in 89 counties while declining in 31 counties. Fayette County, home to Lexington, saw a net decline of 12,044 Republican registrations over the four-year span, and a loss of 15,791 Democratic registrations.

The most recent report shows 3,349,449 registered voters across the Commonwealth, with total voter registration declining by 208,264 voters between December 2021 and December 2025, a 5.9 percent drop despite population growth during the same period.

Kentucky voters will head to the polls in May for primary elections and in November 2026 for midterm elections, with races including a contested U.S. Senate seat, all six congressional seats, the entire state House and even-numbered state Senate districts on the ballot.