Feminine dossier · first seen 1949
Kaylyn
Stable Decline
Gradual decline from 1997
Peak era
1997
Peak births
462
Current vitality
Rare
Peak generation
Gen Z
Quick answers about Kaylyn
How many people are named Kaylyn?
An estimated 11,774 living Americans are named Kaylyn.
How rare is Kaylyn?
Kaylyn is uncommon among babies today, with 70 girls receiving the name in 2025, down 84.8% from its 1997 peak.
How old is the typical Kaylyn?
The median age of a living American named Kaylyn is approximately 25 years, with most bearers falling between 17 and 31 years old.
Is Kaylyn still popular?
Not especially. Kaylyn has been declining since its 1997 peak and registered 70 births in 2025.
Where is Kaylyn most common?
Kaylyn has its strongest geographic signal in Louisiana, where it appears 2.4× more often than the national baseline.
1949Peak 19972025
Peak year
1997
Decline from peak
84.8%
2025
70
All-time
12,053
Where it lives now
Kaylyn is most concentrated in Louisiana — about 2.4× the national rate in the 2000s. It also runs high in Alabama.
States where Kaylyn is given more often than the national average — its present-day heartland.