Masculine dossier · first seen 1889
Alfonzo
Stable
Cross-generational persistence
Peak era
1970
Peak births
90
Current vitality
Rare
Peak generation
Gen X
Quick answers about Alfonzo
How many people are named Alfonzo?
An estimated 3,901 living Americans are named Alfonzo.
How rare is Alfonzo?
Alfonzo is very rare among babies today, with 27 boys receiving the name in 2025, down 70% from its 1970 peak.
How old is the typical Alfonzo?
The median age of a living American named Alfonzo is approximately 45 years, with most bearers falling between 30 and 60 years old.
Is Alfonzo still popular?
Yes. Alfonzo is holding steady, with 27 births in 2025 and a consistent recent baseline.
Where is Alfonzo most common?
Alfonzo has its strongest geographic signal in Georgia, where it appears 3.7× more often than the national baseline.
1889Peak 19702025
Peak year
1970
Decline from peak
70%
2025
27
All-time
5,783
Where it lives now
Alfonzo is most concentrated in Illinois — about 2.0× the national rate in the 1980s.
States where Alfonzo is given more often than the national average — its present-day heartland.