Thadius
Every Thadius since 1922 — 511 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Thadius
Thadius is not currently in use for newborns in the United States — fewer than five babies received the name in 2025. Its story lives in the historical record below.
Since 1922, 511 American babies have been named Thadius. Its peak came in 1974, when 19 newborns received the name — the signature sound of the 1970s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Thadius stood among all boys' names in any year, or use the compare tool to plot it against other names.
Thadius year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | — | — |
| 2024 | 7 | #10,810 |
| 2023 | — | — |
| 2022 | — | — |
| 2021 | — | — |
| 2020 | 5 | #13,845 |
| 2019 | 6 | #11,991 |
| 2018 | 6 | #11,991 |
| 2017 | — | — |
| 2016 | 8 | #9,581 |
| 2015 | 7 | #10,513 |
| 2014 | 6 | #11,960 |
| 2013 | 8 | #9,571 |
| 2012 | 9 | #8,794 |
| 2011 | 5 | #14,134 |
| 2010 | 6 | #12,063 |
| 2009 | 7 | #10,852 |
| 2008 | 10 | #8,243 |
| 2007 | 6 | #12,203 |
| 2006 | 6 | #11,913 |
| 2005 | 8 | #9,009 |
| 2004 | 9 | #8,085 |
| 2003 | 8 | #8,555 |
| 2002 | 12 | #6,044 |
| 2001 | 9 | #7,457 |
| 2000 | 6 | #10,236 |
| 1995 | 11 | #5,467 |
| 1990 | 8 | #6,359 |
| 1985 | 10 | #4,307 |
| 1980 | 7 | #5,469 |
| 1975 | 11 | #3,411 |
| 1970 | 7 | #4,194 |
| 1965 | — | — |
| 1960 | — | — |
| 1955 | — | — |
| 1950 | — | — |
| 1945 | — | — |
| 1940 | — | — |
| 1935 | — | — |
| 1930 | — | — |
| 1925 | — | — |
| 1920 | — | — |
| 1915 | — | — |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Frequently asked questions
How popular is the name Thadius in 2025?
Thadius did not appear in the 2025 Social Security data, which means fewer than five babies received the name that year.
How many people are named Thadius?
511 babies have been named Thadius in the United States since 1922, based on Social Security card applications.
When was the name Thadius most popular?
Thadius peaked in 1974, when 19 newborns received the name.
Is Thadius a boy or girl name?
Thadius is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Thadius rising or falling?
Thadius is declining — less popular now than a decade ago.