Alfonzo — #4418 US boys' name

What the Data Says About Alfonzo

The Social Security Administration has registered 5,755 babies named Alfonzo between 1889 and 2024, spanning 136 consecutive years of U.S. birth records. As a boy's name, Alfonzo currently holds the #4418 rank among boys for 2024. The name reached its historical peak in 1970, when 90 babies received it in a single year.

Decade-level aggregation shows that Alfonzo performed strongest in the 1970s, accumulating 802 births during that ten-year window. Across the 15 decades of recorded activity, Alfonzo shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 467 births — the largest state-level total in the dataset — followed by Texas and Illinois. In total, SSA state-level files list Alfonzo in 21 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Alfonzo 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 5,755 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.