Jil — girls' name

What the Data Says About Jil

The Social Security Administration has registered 559 babies named Jil between 1945 and 2002, spanning 58 consecutive years of U.S. birth records. As a girl's name, Jil currently falls outside the top 1,000 girls' names for 2002. The name reached its historical peak in 1957, when 36 babies received it in a single year.

Decade-level aggregation shows that Jil performed strongest in the 1960s, accumulating 208 births during that ten-year window. Across the 7 decades of recorded activity, Jil shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 27 births — the largest state-level total in the dataset — followed by New York. In total, SSA state-level files list Jil in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Jil 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 559 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.