How Many People Are Named Caillou?
people named Caillou are alive in the United States today (estimate)
About 1 in 1,372,629 people in the US has this name
Based on 252 babies named Caillou in Social Security records from 2001 to 2019, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
35 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
All of the babies given the name Caillou in the records were boys.
👥 Age Distribution
The average person named Caillou alive today is about 18 years old, and 100% are under 30. Half of them were between 15 and 22 in 2025.
📈 Popularity Over Time
Caillou first appears in the records in 2001 and was given most often in 2001, to 35 babies. The last year it was given to at least 5 babies of one sex was 2019.
Babies given the name each year, 2001 to 2019
🏆 Rank History
Caillou has never been one of the 100 most popular boys' names. Its best rank was #2,685, in 2001.
| Boys | |
|---|---|
| Rank in 2025 | Not ranked |
| Best rank | #2,685 (2001) |
| Years in the top 100 | None |
| Rank in its biggest decade | #4,627 in the 2000s |
📍 State-Wise Distribution
People named Caillou alive today, by the state where they were born (estimate; state records start in 1910).
More people named Caillou were born in California than in any other state: about 19 of those alive today.
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