Feminine dossier · first seen 1934
Kayleen
Stable
Cross-generational persistence
Peak era
2010
Peak births
284
Current vitality
Rare
Peak generation
Gen Z
1934Peak 20102025
Quick answers about Kayleen
How many people are named Kayleen?
An estimated 7,630 living Americans are named Kayleen.
How rare is Kayleen?
Kayleen is uncommon among babies today, with 70 girls receiving the name in 2025, down 75.4% from its 2010 peak.
How old is the typical Kayleen?
The median age of a living American named Kayleen is approximately 22 years, with most bearers falling between 14 and 35 years old.
Is Kayleen still popular?
Yes. Kayleen is holding steady, with 70 births in 2025 and a consistent recent baseline.
Where is Kayleen most common?
Kayleen has its strongest geographic signal in California, where it appeared 2.3× more often than the national baseline in the 2020s.
Peak year
2010
Decline from peak
75.4%
2025
70
All-time
7,995
Where it lives now
Kayleen is most concentrated in California — about 2.3× the national rate in the 2020s.
States where Kayleen is given more often than the national average — its present-day heartland.