Recorded 1915–2015 Boys' name Peak 1919 142 births

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.

1910s221920s361930s51980s81990s502000s162010s5
1990s
Peak decade

35% of everyone ever named Wataru was born in this single decade.

1919
Single peak year

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 2015

Total births

142

Since 1915

101 years of records

Peak year

1919

15 births that year

Strongest decade: 1990s

Current rank

Unranked

Outside the modern top-1,000

As of 2015

Active since

1915

Recorded for 101 years

Last year on file: 2015

Wataru popularity over time

Annual U.S. births registered with the Social Security Administration · 2015–1915

Last recorded 2015
Peak year (1919)
15
Annual births at peak — across 101 years of records
05101520 20152002199719921989192519211915 7

Wataru by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1990s
Peak decade
1990s
50 births that decade — 35% of Wataru's all-time total
1910s221920s361930s51980s81990s502000s162010s5

Wataru by state

Where Wataru concentrates geographically — total births since 1915

Geographically diffuse
Top 2 states by recorded births for the name Wataru
Rank State Visual share Births Share of total
#1 Hawaii
27 19.0%
#2 California
5 3.5%
Hawaii share of Wataru's total US births 19.0%
Even split

27 of 142 births nationwide. Compared to a flat distribution across 2 reporting states.

Frequently Asked Questions

How popular is the name Wataru?
142 babies have been named Wataru since 1915. It was last recorded in 2015. The peak year was 1919 with 15 births.
When was Wataru most popular?
Wataru was most popular in the 1990s decade with 50 total births. The single peak year was 1919.
Where is Wataru most popular?
The top states for the name Wataru are Hawaii (27 births), California (5 births).
How long has the name Wataru been used?
Wataru has been recorded in Social Security data since 1915, spanning 101 years of data through 2015.
What names are similar to Wataru?
Names with a similar sound or spelling include Watson, Watt, Watts, Wattson, and 4 more. These share a common prefix and are also used for boys.

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.