Boys' name · since 1915
Isao
Isao has 246 recorded births since 1915 in federal Social Security data, most heavily in 1925 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #11,762 of 45,481
- all-time among boys
- 246
- born since 1915
- 1920s
- peak decade
Isao sits outside today's top ranks for boys, with 246 recorded since 1915.
Social Security Administration records show Isao recorded 246 times among boys since 1915, 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 1915 to 2016.
- #11,762 of 45,481 all-time among boys
- 246 born since 1915
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Isao ranks #11,762 of 45,481 boys' names by all-time recorded births (highest first). 246 born since 1915, peaking in the 1920s.
- #11,762 of 45,481
- all-time among boys
- 246
- born since 1915
- 1920s
- peak decade
Isao's 246 recorded births place it above 74.1% of the 45,481 boys names in the full SSA archive.
The state file records this name in 2 jurisdictions, led by Hawaii.
Isao's usage pattern, beyond the headline number
Divide Isao's SSA record in two at 1926 and the more recent half accounts for 36% of all births, the earlier half the remaining 64%, consistent with a name more common in the past than in recent years. Its calmest year was 1934, with only 5 births recorded -- set against the 1925 peak of 20, that's the full swing in one name's fortunes.
Isao popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–2016
- Peak year (1925)
- 20
- Annual births at peak, across 102 years of records
Isao by decade
1920s is the heaviest window (128 births, 52% of the file).
1920s was Isao's strongest decade.
128 babies received the name during that ten-year window, about 52% of all-time use.
Isao births by decade
Total births in each ten-year window
- 1910s
1910s
70 births
- 1920s
1920s
128 births
- 1930s 38
1930s
38 births
- 1940s 5
1940s
5 births
- 2010s 5
2010s
5 births
What this shows Peak: 1920s at 128 births (52% of all-time use).
Isao by state
Where Isao concentrates geographically, total births since 1915
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Hawaii | | 87 | 35.4% |
| #2 | California | | 59 | 24.0% |
87 of 246 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
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What to do with Isao's data
- Isao's decade-level peak was the 1920s (128 total births); usage has since declined to 5 in the 2010s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Hawaii records the most Isaos (87 births) -- see the full state breakdown if geography matters to your decision. Hawaii names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Isao
Nearby Names Like Isao
Names with a similar sound, spelling, or feel to Isao
Compare Isao side by side: Isao vs Isaac Isao vs Isaiah Isao vs Isaias
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Isao: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1925)
Similar record span (~101 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 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, 1915–2016 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
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 Isao 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 August 2026.