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
Where it lives now
Theda is most concentrated in Oklahoma — about 3.0× the national rate in the 1930s.
States where Theda is given more often than the national average — its present-day heartland.
3×+
2×+
1.5×+
1.2×+
~ national
