Wataru — boys' name
142 babies named Wataru in U.S. Social Security records since 1915, with the highest year being 1919. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
35% of everyone ever named Wataru was born in this single decade.
15 babies were named Wataru in 1919 — its busiest year on record.
What the Data Says About Wataru
The Social Security Administration has registered 142 babies named Wataru between 1915 and 2015, spanning 101 consecutive years of U.S. birth records. As a boy's name, Wataru currently falls outside the top 1,000 boys' names for 2015. The name reached its historical peak in 1919, when 15 babies received it in a single year.
Decade-level aggregation shows that Wataru performed strongest in the 1990s, accumulating 50 births during that ten-year window. Across the 7 decades of recorded activity, Wataru shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Hawaii, which accounts for 27 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Wataru in 2 of the 51 U.S. reporting jurisdictions.
No etymological entry is currently available for Wataru 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 142 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.
Wataru at a glance
Last recorded 2015Peak year
Current rank
Active since
Wataru popularity over time
Annual U.S. births registered with the Social Security Administration · 2015–1915
- Peak year (1919)
- 15
- Annual births at peak — across 101 years of records
No longer in the modern top-1000 — last recorded 2015.
142 total births across 101 years of SSA records. Peaked in 1919 with 15 births in a single year.
Wataru by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1990s
- 50 births that decade — 35% of Wataru's all-time total
Wataru decade highlights
- Peak decade 50 births
- Runner-up 36 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1990s was Wataru's strongest decade
50 babies received the name during that ten-year window — about 35% of all-time use.
Wataru by state
Where Wataru concentrates geographically — total births since 1915
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 27 | 19.0% |
| #2 | California | | 5 | 3.5% |
27 of 142 births nationwide. Compared to a flat distribution across 2 reporting states.
Top 5 states
- Hawaii 19.0% of nationwide
- California 3.5% of nationwide
Recorded in 2 of 51 SSA jurisdictions
Hawaii accounts for 19.0% of all recorded births nationwide — a relatively diffuse profile for this name.
Frequently Asked Questions
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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, 1915–2015 (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.