This is a list of current U.S. Senators sorted by age. Age does not determine seniority in the Senate.

As of February 22, 2010, 1 Senator is in his 90s, 4 are in their 80s, 21 are in their 70s, 33 are in their 60s, 31 are in their 50s, 10 are in their 40s.
The median age of currently serving Senators is 63 years old
The median age of inauguration for currently serving Senators is 50 years, 131 days. http://en.wikipedia.org/wiki/List_of_cu ... ors_by_age