All newly-elected/re-elected Senators who serve in the 119th Congress appear under 'Class 1'. Senators appearing in the 'Class 1' column were elected in 2024 to the full six-year term beginning at Noon, 3 January 2025.
Reference: United States Senate Electoral "Classes"
| Class 1 [next regular election: Tuesday 5 November 2030] | Class 2 [next regular election: Tuesday 3 November 2026] | Class 3 [next regular election: Tuesday 7 November 2028] |
|---|---|---|
| Arizona: Gallego (D) | Alabama: Tuberville (R) | Alabama: Britt (R) |
| California: Schiff (D) | Alaska: Sullivan (R) | Alaska: Murkowski (R) |
| Connecticut: Murphy (D) | Arkansas: Cotton (R) | Arizona: Kelly (D) |
| Delaware: Rochester (D) | Colorado: Hickenlooper (D) | Arkansas: Boozman (R) |
| Florida: Scott (R) | Delaware: Coons (D) | California: Padilla (D) |
| Hawaii: Hirono (D) | Georgia: Ossoff (D) | Colorado: Bennet (D) |
| Indiana: Banks (R) | Idaho: Risch (R) | Connecticut: Blumenthal (D) |
| Maine: King (I) | Illinois: Durbin (D) | Florida: Rubio (R) |
| Maryland: Alsobrooks (D) | Iowa: Ernst (R) | Georgia: Warnock (D) |
| Massachusetts: Warren (D) | Kansas: Marshall (R) | Hawaii: Schatz (D) |
| Michigan: Slotkin (D) | Kentucky: McConnell (R) | Idaho: Crapo (R) |
| Minnesota: Klobuchar (D) | Louisiana: Cassidy (R) | Illinois: Duckworth (D) |
| Mississippi: Wicker (R) | Maine: Collins (R) | Indiana: Young (R) |
| Missouri: Hawley (R) | Massachusetts: Markey (D) | Iowa: Grassley (R) |
| Montana: Sheehy (R) | Michigan: Peters (D) | Kansas: Moran (R) |
| Nebraska: Fischer (R) | Minnesota: Smith (D) | Kentucky: Paul (R) |
| Nevada: Rosen (D) | Mississippi: Hyde-Smith (R) | Louisiana: Kennedy (R) |
| New Jersey: Kim (D) | Montana: Daines (R) | Maryland: Van Hollen (D) |
| New Mexico: Heinrich (D) | Nebraska: Ricketts (R) | Missouri: Schmitt (R) |
| New York: Gillibrand (D) | New Hampshire: Shaheen (D) | Nevada: Cortez Masto (D) |
| North Dakota: Cramer (R) | New Jersey: Booker (D) | New Hampshire: Hassan (D) |
| Ohio: Moreno (R) | New Mexico: Luján (D) | New York: Schumer (D) |
| Pennsylvania: McCormick (R) | North Carolina: Tillis (R) | North Carolina: Budd (R) |
| Rhode Island: Whitehouse (D) | Oklahoma: Mullin (R) | North Dakota: Hoeven (R) |
| Tennessee: Blackburn (R) | Oregon: Merkley (D) | Ohio: Vance (R) |
| Texas: Cruz (R) | Rhode Island: Reed (D) | Oklahoma: Lankford (R) |
| Utah: Curtis (R) | South Carolina: Graham (R) | Oregon: Wyden (D) |
| Vermont: Sanders (I) | South Dakota: Rounds (R) | Pennsylvania: Fetterman (D) |
| Virginia: Kaine (D) | Tennessee: Hagerty (R) | South Carolina: Scott (R) |
| Washington: Cantwell (D) | Texas: Cornyn (R) | South Dakota: Thune (R) |
| West Virginia: Justice (R) | Virginia: Warner (D) | Utah: Lee (R) |
| Wisconsin: Baldwin (D) | West Virginia: Capito (R) | Vermont: Welch (D) |
| Wyoming: Barrasso (R) | Wyoming: Lummis (R) | Washington: Murray (D) |
| Wisconsin: Johnson (R) | ||
| Class 1 - 33 Seats 17 Democratic (D) 14 Republican (R) 2 Independent (I) | Class 2 - 33 Seats 20 Republican (R) 13 Democratic (D) | Class 3 - 34 Seats 19 Republican (R) 15 Democratic (D) |
| Entire Senate - 100 Seats 53 Republican (R) 45 Democratic (D) 2 Independent (I) | ||
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Modified .