Thadeo — #5037 US boys' name

What the Data Says About Thadeo

The Social Security Administration has registered 100 babies named Thadeo between 2014 and 2024, spanning 11 consecutive years of U.S. birth records. As a boy's name, Thadeo currently holds the #5037 rank among boys for 2024. The name reached its historical peak in 2024, when 20 babies received it in a single year.

Decade-level aggregation shows that Thadeo performed strongest in the 2020s, accumulating 70 births during that ten-year window. Across the 2 decades of recorded activity, Thadeo shows a stable profile with only moderate drift from its peak decade. Geographically, the name is most concentrated in Texas, which accounts for 12 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Thadeo in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Thadeo in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 100 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.