Quick answers about Masao
How many people are named Masao?
An estimated 39 living Americans are named Masao.
How rare is Masao?
Masao fell below the SSA's 5-birth reporting floor in 2025. It is extremely rare as a new baby name.
How old is the typical Masao?
The median age of a living American named Masao is approximately 44 years, with most bearers falling between 13 and 85 years old.
Is Masao still popular?
Not especially. Masao has been declining since its 1918 peak and registered 0 births in 2025.
Where is Masao most common?
Masao has its strongest geographic signal in Hawaii, where it appears 265.2× more often than the national baseline.
1907Peak 19182025
Where it lives now
Masao is most concentrated in Hawaii — about 152.2× the national rate in the 1930s.
States where Masao is given more often than the national average — its present-day heartland.
3×+
2×+
1.5×+
1.2×+
~ national
