Kentucky's 21st Senate district

Kentucky's 21st Senatorial district is one of 38 districts in the Kentucky Senate. Located in the southern part of the state, it comprises the counties of Casey, Laurel, Lincoln, and Rockcastle. It has been represented by Brandon J. Storm (R–London) since 2021. As of 2022, the district had a population of 118,875.

Voter registration
On July 1, 2024, the district had 90,876 registered voters, who were registered with the following parties.