Illona — girls' name

What the Data Says About Illona

The Social Security Administration has registered 251 babies named Illona between 1940 and 1972, spanning 33 consecutive years of U.S. birth records. As a girl's name, Illona currently falls outside the top 1,000 girls' names for 1972. The name reached its historical peak in 1946, when 23 babies received it in a single year.

Decade-level aggregation shows that Illona performed strongest in the 1940s, accumulating 129 births during that ten-year window. Across the 4 decades of recorded activity, Illona shows a clear decline from its mid-century high. Geographically, the name is most concentrated in New York, which accounts for 11 births — the largest state-level total in the dataset — followed by Pennsylvania. In total, SSA state-level files list Illona in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Illona 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 251 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.