These are lists of the youngest and oldest senators currently serving in the United States Senate.
41 years old
43 years old
44 years old
46 years old
47 years old
48 years old
48 years old
48 years old
49 years old
87 years old
87 years old
86 years old
86 years old
84 years old
80 years old
80 years old
79 years old
78 years old