Masculine dossier · first seen 1956
Kaj
Stable
Cross-generational persistence
Peak era
2006
Peak births
20
Current vitality
Rare
Peak generation
Gen Z
1956Peak 20062025
Quick answers about Kaj
How many people are named Kaj?
An estimated 501 living Americans are named Kaj.
How rare is Kaj?
Kaj is very rare among babies today, with 5 boys receiving the name in 2025, down 75% from its 2006 peak.
How old is the typical Kaj?
The median age of a living American named Kaj is approximately 21 years, with most bearers falling between 13 and 33 years old.
Is Kaj still popular?
Yes. Kaj is holding steady, with 5 births in 2025 and a consistent recent baseline.
Peak year
2006
Decline from peak
75%
2025
5
All-time
515