Alphonzo — #9900 US boys' name

What the Data Says About Alphonzo

The Social Security Administration has registered 2,031 babies named Alphonzo between 1895 and 2024, spanning 130 consecutive years of U.S. birth records. As a boy's name, Alphonzo currently holds the #9900 rank among boys for 2024. The name reached its historical peak in 1963, when 43 babies received it in a single year.

Decade-level aggregation shows that Alphonzo performed strongest in the 1950s, accumulating 328 births during that ten-year window. Across the 13 decades of recorded activity, Alphonzo shows a clear decline from its mid-century high. Geographically, the name is most concentrated in North Carolina, which accounts for 105 births — the largest state-level total in the dataset — followed by South Carolina and Georgia. In total, SSA state-level files list Alphonzo in 9 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Alphonzo 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 2,031 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.