Macarthur — #10009 US boys' name

What the Data Says About Macarthur

The Social Security Administration has registered 1,285 babies named Macarthur between 1941 and 2024, spanning 84 consecutive years of U.S. birth records. As a boy's name, Macarthur currently holds the #10009 rank among boys for 2024. The name reached its historical peak in 1942, when 142 babies received it in a single year.

Decade-level aggregation shows that Macarthur performed strongest in the 1940s, accumulating 357 births during that ten-year window. Across the 9 decades of recorded activity, Macarthur shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Mississippi, which accounts for 35 births — the largest state-level total in the dataset — followed by Alabama and Tennessee. In total, SSA state-level files list Macarthur in 14 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Macarthur 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 1,285 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.