Cynthia — #827 US girls' name

What the Data Says About Cynthia

The Social Security Administration has registered 711,201 babies named Cynthia between 1880 and 2024, spanning 145 consecutive years of U.S. birth records. As a girl's name, Cynthia currently holds the #827 rank among girls for 2024. The name reached its historical peak in 1957, when 39,340 babies received it in a single year.

Decade-level aggregation shows that Cynthia performed strongest in the 1950s, accumulating 263,429 births during that ten-year window. Across the 15 decades of recorded activity, Cynthia shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 82,684 births — the largest state-level total in the dataset — followed by Texas and New York. In total, SSA state-level files list Cynthia in 51 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Cynthia 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 711,201 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.