These are lists of the youngest and oldest senators currently serving in the United States Senate.
39 years old
42 years old
43 years old
45 years old
46 years old
47 years old
47 years old
47 years old
48 years old
86 years old
86 years old
85 years old
85 years old
83 years old
79 years old
79 years old
78 years old
77 years old