How Many People Are Named Thadius?
people named Thadius are alive in the United States today (estimate)
About 1 in 727,201 people in the US has this name
Based on 511 babies named Thadius in Social Security records from 1922 to 2024, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
19 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
All of the babies given the name Thadius in the records were boys.
👥 Age Distribution
The average person named Thadius alive today is about 33 years old, and 58% are between 30 and 59. Half of them were between 21 and 46 in 2025.
📈 Popularity Over Time
Thadius first appears in the records in 1922 and was given most often in 1974, to 19 babies. The last year it was given to at least 5 babies of one sex was 2024.
Babies given the name each year, 1922 to 2024
🏆 Rank History
Thadius has never been one of the 100 most popular boys' names. Its best rank was #2,264, in 1974.
| Boys | |
|---|---|
| Rank in 2025 | Not ranked |
| Best rank | #2,264 (1974) |
| Years in the top 100 | None |
| Rank in its biggest decade | #3,097 in the 1970s |
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