Rio — #516 US boys' name

What the Data Says About Rio

The Social Security Administration has registered 4,962 babies named Rio between 1920 and 2024, spanning 105 consecutive years of U.S. birth records. As a boy's name, Rio currently holds the #516 rank among boys for 2024. The name reached its historical peak in 2024, when 591 babies received it in a single year. Rio is classified as unisex in SSA records: the opposite-sex variant accounts for 2,177 additional births since 1930.

Decade-level aggregation shows that Rio performed strongest in the 2020s, accumulating 2,341 births during that ten-year window. Across the 10 decades of recorded activity, Rio shows a stable profile with only moderate drift from its peak decade. Geographically, the name is most concentrated in California, which accounts for 1,146 births — the largest state-level total in the dataset — followed by Texas and New York. In total, SSA state-level files list Rio in 37 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Rio 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 4,962 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.