Total births
562
Boys' name · since 1912
Isamu
Since 1912, U.S. Social Security records show 562 babies named Isamu, peaking in 1922. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 562
- total births
- 1912–2023
- years on record
- 1920s
- peak decade
- 52%
- born in that decade
Isamu is not among the current top-ranked boys names; 562 have been recorded since 1912.
According to the U.S. Social Security Administration, Isamu has been recorded 562 times among boys since 1912, though it is not among the currently most-used boys names, with its heaviest use in the 1920s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1912 to 2023.
- 562 total births
- 1912–2023 years on record
- 1920s peak decade
- 52% born in that decade
Data updated Jun 2026
The verdict
562 boys have been named Isamu since 1912, peaking in the 1920s, last recorded in 2023.
- 562
- total births
- 1912–2023
- years on record
- 1920s
- peak decade
- 52%
- born in that decade
1920s
Peak decade
52% of everyone ever named Isamu was born in this single decade.
1922
Single peak year
40 babies were named Isamu in 1922 - its busiest year on record.
Isamu's usage pattern, beyond the headline number
Isamu splits its recorded history at 1928: 27% of all births land in the more recent half, 73% in the earlier half, leaning more toward its earlier era than today's. The single quietest year was 1987 (5 births) -- compare that against the 1922 peak of 40 for a sense of just how much the name's popularity has swung.
Isamu at a glance
Last recorded 2023Peak year
1922
Current rank
Unranked
Active since
1912
Isamu popularity over time
Annual U.S. births registered with the Social Security Administration · 1912–2023
- Peak year (1922)
- 40
- Annual births at peak, across 112 years of records
Isamu by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Isamu's strongest decade.
295 babies received the name during that ten-year window, about 52% of all-time use.
Isamu births by decade
Total births in each ten-year window
- 1910s
1910s
147 births
- 1920s
1920s
295 births
- 1930s 73
1930s
73 births
- 1980s 5
1980s
5 births
- 2000s 36
2000s
36 births
- 2020s 6
2020s
6 births
What this shows Peak: 1920s at 295 births (52% of all-time use).
How Isamu compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Isamu's total volume
Isamu vs 15 similarly-sized boys names
Isamu by state
Where Isamu concentrates geographically, total births since 1912
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 265 | 47.2% |
| #2 | California | | 168 | 29.9% |
Hawaii share of Isamu's total US births 47.2%
Even split
265 of 562 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Isamu? ▼
562 babies have been named Isamu since 1912. It was last recorded in 2023. The peak year was 1922 with 40 births.
When was Isamu most popular? ▼
Isamu was most popular in the 1920s decade with 295 total births. The single peak year was 1922.
Where is Isamu most popular? ▼
The top states for the name Isamu are Hawaii (265 births), California (168 births).
How long has the name Isamu been used? ▼
The SSA has tracked Isamu since 1912 -- 112 years through the most recent 2023 data.
What names are similar to Isamu? ▼
Names with a similar sound or spelling include Isaac, Isaiah, Isaias, Isai, and 4 more. These share a common prefix and are also used for boys.
What to do with Isamu's data
- Isamu's decade-level peak was the 1920s (295 total births); usage has since declined to 6 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Hawaii records the most Isamus (265 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 Isamu
Nearby Names Like Isamu
Names with a similar sound, spelling, or feel to Isamu
Isaac Boy
#41 331,508 births
Isaiah Boy
#56 254,020 births
Isaias Boy
#449 18,644 births
Isai Boy
#1063 7,340 births
Isadore Boy
#8318 5,714 births
Compare Isamu side by side: Isamu vs Isaac Isamu vs Isaiah Isamu vs Isaias
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, 1912–2023 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Isamu: Baby Name Since 1912 - 562 Births, Peak 1922." NameAlmanac. Accessed via https://namealmanac.com/name/isamu. 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 Isamu 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.