Harolyn — girls' name
577 babies named Harolyn in U.S. Social Security records since 1933, with the highest year being 1945. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
30% of everyone ever named Harolyn was born in this single decade.
45 babies were named Harolyn in 1945 — its busiest year on record.
What the Data Says About Harolyn
The Social Security Administration has registered 577 babies named Harolyn between 1933 and 1979, spanning 47 consecutive years of U.S. birth records. As a girl's name, Harolyn currently falls outside the top 1,000 girls' names for 1979. The name reached its historical peak in 1945, when 45 babies received it in a single year.
Decade-level aggregation shows that Harolyn performed strongest in the 1940s, accumulating 173 births during that ten-year window. Across the 5 decades of recorded activity, Harolyn shows a clear decline from its mid-century high. Geographically, the name is most concentrated in New York, which accounts for 18 births — the largest state-level total in the dataset — followed by Pennsylvania. In total, SSA state-level files list Harolyn in 2 of the 51 U.S. reporting jurisdictions.
No etymological entry is currently available for Harolyn 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 577 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.
Harolyn at a glance
Last recorded 1979Peak year
Current rank
Active since
Harolyn popularity over time
Annual U.S. births registered with the Social Security Administration · 1979–1933
- Peak year (1945)
- 45
- Annual births at peak — across 47 years of records
No longer in the modern top-1000 — last recorded 1979.
577 total births across 47 years of SSA records. Peaked in 1945 with 45 births in a single year.
Harolyn by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1940s
- 173 births that decade — 30% of Harolyn's all-time total
Harolyn decade highlights
- Peak decade 173 births
- Runner-up 156 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1940s was Harolyn's strongest decade
173 babies received the name during that ten-year window — about 30% of all-time use.
Harolyn by state
Where Harolyn concentrates geographically — total births since 1933
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | New York | | 18 | 3.1% |
| #2 | Pennsylvania | | 6 | 1.0% |
18 of 577 births nationwide. Compared to a flat distribution across 2 reporting states.
Top 5 states
- New York 3.1% of nationwide
- Pennsylvania 1.0% of nationwide
Recorded in 2 of 51 SSA jurisdictions
New York accounts for 3.1% of all recorded births nationwide — a relatively diffuse profile for this name.
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Data Sources
Data as of 2024. Source: U.S. Social Security Administration (SSA).
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1933–1979 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.
State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.