Feminine dossier · first seen 1880
Theda
Stable Decline
Gradual decline from 1919
Peak era
1919
Peak births
356
Current vitality
Below reporting floor
Peak generation
Greatest Generation
Quick answers about Theda
How many people are named Theda?
An estimated 1,157 living Americans are named Theda.
How rare is Theda?
Theda 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 Theda?
The median age of a living American named Theda is approximately 69 years, with most bearers falling between 59 and 77 years old.
Is Theda still popular?
Not especially. Theda has been declining since its 1919 peak and registered 0 births in 2025.
Where is Theda most common?
Theda has its strongest geographic signal in Oklahoma, where it appears 3.7× more often than the national baseline.
1880Peak 19192025
Peak year
1919
Decline from peak
100%
2025
0
All-time
6,556