Total births
244
Boys' name · since 1914
Sadao
Since 1914, U.S. Social Security records show 244 babies named Sadao, peaking in 1926. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 244
- total births
- 1914–1934
- years on record
- 1920s
- peak decade
- 57%
- born in that decade
244 boys have been named Sadao since 1914, though it isn't currently a top-ranked name.
Social Security Administration records show Sadao recorded 244 times among boys since 1914, though it doesn't currently rank among the most-used boys names, peaking in the 1920s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1914 to 1934.
- 244 total births
- 1914–1934 years on record
- 1920s peak decade
- 57% born in that decade
Data updated Jun 2026
The verdict
244 boys have been named Sadao since 1914, peaking in the 1920s, last recorded in 1934.
- 244
- total births
- 1914–1934
- years on record
- 1920s
- peak decade
- 57%
- born in that decade
1920s
Peak decade
57% of everyone ever named Sadao was born in this single decade.
1926
Single peak year
22 babies were named Sadao in 1926 - its busiest year on record.
Sadao's usage pattern, beyond the headline number
Splitting Sadao's full recorded timeline at 1924, 48% of its total births fall in the more recent half of the record versus 52% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1914, with just 5 recorded births -- worth weighing against the 1926 peak of 22 to see the full range of the name's swing in popularity.
Sadao at a glance
Last recorded 1934Peak year
1926
Current rank
Unranked
Active since
1914
Sadao popularity over time
Annual U.S. births registered with the Social Security Administration · 1914–1934
- Peak year (1926)
- 22
- Annual births at peak, across 21 years of records
Sadao by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Sadao's strongest decade.
140 babies received the name during that ten-year window, about 57% of all-time use.
Sadao births by decade
Total births in each ten-year window
- 1910s
1910s
68 births
- 1920s
1920s
140 births
- 1930s 36
1930s
36 births
What this shows Peak: 1920s at 140 births (57% of all-time use).
Sadao by state
Where Sadao concentrates geographically, total births since 1914
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 156 | 63.9% |
| #2 | California | | 17 | 7.0% |
Hawaii share of Sadao's total US births 63.9%
Even split
156 of 244 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Sadao? ▼
Since 1914, Social Security records show 244 babies named Sadao. The most recent recorded year was 1934. Its busiest year on record was 1926, with 22 births.
When was Sadao most popular? ▼
Sadao was most popular in the 1920s decade with 140 total births. The single peak year was 1926.
Where is Sadao most popular? ▼
The top states for the name Sadao are Hawaii (156 births), California (17 births).
How long has the name Sadao been used? ▼
Sadao has been recorded in Social Security data since 1914, spanning 21 years of data through 1934.
What names are similar to Sadao? ▼
Names with a similar sound or spelling include Sadiq, Sadie, Sadler, Sadrac, and 4 more. These share a common prefix and are also used for boys.
What to do with Sadao's data
- Sadao's decade-level peak was the 1920s (140 total births); usage has since declined to 36 in the 1930s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Hawaii records the most Sadaos (156 births) -- see the full state breakdown if geography matters to your decision. Hawaii names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Sadao
Nearby Names Like Sadao
Names with a similar sound, spelling, or feel to Sadao
Sadiq Boy
#8534 682 births
Sadie Boy
241 births
Sadler Boy
#8015 192 births
Sadrac Boy
#7415 159 births
Sadarius Boy
158 births
Compare Sadao side by side: Sadao vs Sadiq Sadao vs Sadie Sadao vs Sadler
Related Names
Names with a similar number of total births
Data Sources
Data as of June 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1914–1934 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Sadao: Baby Name Since 1914 - 244 Births, Peak 1926." NameAlmanac. Accessed via https://namealmanac.com/name/sadao. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Sadao draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.