Feminine dossier · first seen 1948
Alannah
Stable Decline
Gradual decline from 2015
Peak era
2015
Peak births
370
Current vitality
Fragile
Peak generation
Gen Alpha
Quick answers about Alannah
How many people are named Alannah?
An estimated 7,288 living Americans are named Alannah.
How rare is Alannah?
Alannah is uncommon among babies today, with 123 girls receiving the name in 2025, down 66.8% from its 2015 peak.
How old is the typical Alannah?
The median age of a living American named Alannah is approximately 15 years, with most bearers falling between 9 and 23 years old.
Is Alannah still popular?
Not especially. Alannah has been declining since its 2015 peak and registered 123 births in 2025.
Where is Alannah most common?
Alannah has its strongest geographic signal in Massachusetts, where it appears 2.4× more often than the national baseline.
1948Peak 20152025
Peak year
2015
Decline from peak
66.8%
2025
123
All-time
7,392
Where it lives now
Alannah is most concentrated in Massachusetts — about 2.4× the national rate in the 2010s. It also runs high in Florida.
States where Alannah is given more often than the national average — its present-day heartland.