Masculine dossier · first seen 2007
Aizen
Rising
Gaining cultural share
Peak era
2024
Peak births
223
Current vitality
Fragile
Peak generation
Gen Alpha
Quick answers about Aizen
How many people are named Aizen?
An estimated 1,918 living Americans are named Aizen.
How rare is Aizen?
Aizen is uncommon among babies today, with 199 boys receiving the name in 2025, down 10.8% from its 2024 peak.
How old is the typical Aizen?
The median age of a living American named Aizen is approximately 5 years, with most bearers falling between 3 and 10 years old.
Is Aizen still popular?
Yes — Aizen is currently rising in popularity, with 199 births in 2025. Births this decade are running about 3.4× higher than the previous decade.
Where is Aizen most common?
Aizen has its strongest geographic signal in California, where it appears 1.5× more often than the national baseline.
2007Peak 20242025
Peak year
2024
Decline from peak
10.8%
2025
199
All-time
1,934
Where it lives now
Aizen is most concentrated in California — about 1.5× the national rate in the 2020s.
States where Aizen is given more often than the national average — its present-day heartland.