| State | Senator | Party | since | Term | next regular election | Class | |
|---|---|---|---|---|---|---|---|
| | Assentia | vacant | June 1, 2022 | January 2024 | I | ||
| | Astoria | vacant | August 1, 2023 | January 2024 | I | ||
| | Freeland | Lisa Shore | Democrat | July 6, 2022 | 4th | March 2024 | II |
| | Laurentiana | Rebecca Crowford | Republican | October 1, 2023 | 1st | March 2024 | II |
| | New Alcantara | vacant | December 1, 2022 | November 2023 | III | ||
| | Serena | Elizabeth Thorndike | Independent | September 27, 2023 | 1st | November 2023 | III |