How Many People Are Named Kotaro?
people named Kotaro are alive in the United States today (estimate)
About 1 in 1,837,552 people in the US has this name
Based on 194 babies named Kotaro in Social Security records from 1919 to 2023, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
15 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
All of the babies given the name Kotaro in the records were boys.
👥 Age Distribution
The average person named Kotaro alive today is about 17 years old, and 95% are under 30. Half of them were between 10 and 23 in 2025.
📈 Popularity Over Time
Kotaro first appears in the records in 1919 and was given most often in 2010, to 15 babies. The last year it was given to at least 5 babies of one sex was 2023.
Babies given the name each year, 1919 to 2023
🏆 Rank History
Kotaro has never been one of the 100 most popular boys' names. Its best rank was #4,500, in 1919.
| Boys | |
|---|---|
| Rank in 2025 | Not ranked |
| Best rank | #4,500 (1919) |
| Years in the top 100 | None |
| Rank in its biggest decade | #8,621 in the 2000s |
📍 State-Wise Distribution
People named Kotaro alive today, by the state where they were born (estimate; state records start in 1910).
More people named Kotaro were born in California than in any other state: about 12 of those alive today.
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