Jacek — #12579 US boys' name

What the Data Says About Jacek

The Social Security Administration has registered 527 babies named Jacek between 1965 and 2024, spanning 60 consecutive years of U.S. birth records. As a boy's name, Jacek currently holds the #12579 rank among boys for 2024. The name reached its historical peak in 2013, when 37 babies received it in a single year.

Decade-level aggregation shows that Jacek performed strongest in the 2010s, accumulating 197 births during that ten-year window. Across the 7 decades of recorded activity, Jacek shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Illinois, which accounts for 10 births — the largest state-level total in the dataset — followed by Michigan and Texas. In total, SSA state-level files list Jacek in 3 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Jacek 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 527 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.