Updated as of July 31, 2023 AGES OF U.S. SENATORS FROM OLDEST TO YOUNGEST Born Age Born Age Feinstein, Dianne CA D Jan. 22, 1933 90 Kaine, Tim VA D Feb. 26, 1958 65 Grassley, Chuck IA R Sep. 17, 1933 89 Rosen, Jacky BV D Aug. 2, 1957 65 McConnell, Mitch KT R Feb. … Continue reading How Old Are Your Senators?