Feminine dossier · first seen 1888
Erin
Endangered
Down 97.8% from peak
Peak era
1983
Peak births
14,836
Current vitality
Fragile
Peak generation
Millennial
Quick answers about Erin
How many people are named Erin?
An estimated 297,838 living Americans are named Erin.
How rare is Erin?
Erin is uncommon among babies today, with 327 girls receiving the name in 2025, down 97.8% from its 1983 peak.
How old is the typical Erin?
The median age of a living American named Erin is approximately 41 years, with most bearers falling between 32 and 47 years old.
Is Erin still popular?
No. Erin is endangered as a baby name, down 97.8% from its 1983 peak with 327 births in 2025.
Where is Erin most common?
Erin has its strongest geographic signal in Delaware, where it appears 3.0× more often than the national baseline.
1888Peak 19832025
Peak year
1983
Decline from peak
97.8%
2025
327
All-time
316,575
Where it lives now
Erin is most concentrated in Delaware — about 3.0× the national rate in the 2000s.
States where Erin is given more often than the national average — its present-day heartland.