Feminine dossier · first seen 1880
Aileen
Stable
Cross-generational persistence
Peak era
2009
Peak births
685
Current vitality
Fragile
Peak generation
Gen Z
Quick answers about Aileen
How many people are named Aileen?
An estimated 24,136 living Americans are named Aileen.
How rare is Aileen?
Aileen is uncommon among babies today, with 340 girls receiving the name in 2025, down 50.4% from its 2009 peak.
How old is the typical Aileen?
The median age of a living American named Aileen is approximately 24 years, with most bearers falling between 14 and 43 years old.
Is Aileen still popular?
Yes. Aileen is holding steady, with 340 births in 2025 and a consistent recent baseline.
Where is Aileen most common?
Aileen has its strongest geographic signal in Hawaii, where it appears 44.5× more often than the national baseline.
1880Peak 20092025
Peak year
2009
Decline from peak
50.4%
2025
340
All-time
37,637