Dia — #4119 US unisex name

What the Data Says About Dia

The Social Security Administration has registered 2,216 babies named Dia between 1948 and 2024, spanning 77 consecutive years of U.S. birth records. As a girl's name, Dia currently holds the #4119 rank among girls for 2024. The name reached its historical peak in 2015, when 62 babies received it in a single year. Dia is classified as unisex in SSA records: the opposite-sex variant accounts for 117 additional births since 1971.

Decade-level aggregation shows that Dia performed strongest in the 2010s, accumulating 489 births during that ten-year window. Across the 9 decades of recorded activity, Dia shows notable generational variation in parental adoption. Geographically, the name is most concentrated in California, which accounts for 207 births — the largest state-level total in the dataset — followed by Texas and New York. In total, SSA state-level files list Dia in 12 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Dia 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 2,216 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.