How Many People Are Named Thadeo?
people named Thadeo are alive in the United States today (estimate)
About 1 in 2,734,278 people in the US has this name
Based on 126 babies named Thadeo in Social Security records from 2014 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
26 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
All of the babies given the name Thadeo in the records were boys.
👥 Age Distribution
The average person named Thadeo alive today is about 3 years old, and 100% are under 30. Half of them were between 1 and 5 in 2025.
📈 Popularity Over Time
Thadeo first appears in the records in 2014, and 2025 was its biggest year so far, with 26 babies.
Babies given the name each year, 2014 to 2025
🏆 Rank History
Thadeo has never been one of the 100 most popular boys' names. Its best rank was #4,128, in 2025. In 2025 it ranked #4,128.
| Boys | |
|---|---|
| Rank in 2025 | #4,128 |
| Best rank | #4,128 (2025) |
| Years in the top 100 | None |
| Rank in its biggest decade | #5,691 in the 2020s |
📍 State-Wise Distribution
People named Thadeo alive today, by the state where they were born (estimate; state records start in 1910).
More people named Thadeo were born in Texas than in any other state: about 19 of those alive today.
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