Masculine dossier · first seen 1915
Dennison
Stable Decline
Gradual decline from 1949
Peak era
1949
Peak births
18
Current vitality
Below reporting floor
Peak generation
Boomer
Quick answers about Dennison
How many people are named Dennison?
An estimated 548 living Americans are named Dennison.
How rare is Dennison?
Dennison fell below the SSA's 5-birth reporting floor in 2025. It is extremely rare as a new baby name.
How old is the typical Dennison?
The median age of a living American named Dennison is approximately 41 years, with most bearers falling between 27 and 57 years old.
Is Dennison still popular?
Not especially. Dennison has been declining since its 1949 peak and registered 0 births in 2025.
1915Peak 19492025
Peak year
1949
Decline from peak
100%
2025
0
All-time
760