Total births
328
Girls' name · since 1914
Hiroko
328 babies named Hiroko in U.S. Social Security records since 1914, with the highest year being 1919. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 328
- total births
- 1914–1992
- years on record
- 1920s
- peak decade
- 33%
- born in that decade
328 girls have been named Hiroko since 1914, though it isn't currently a top-ranked name.
Social Security Administration records show Hiroko recorded 328 times among girls since 1914, though it doesn't currently rank among the most-used girls 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 1992.
- 328 total births
- 1914–1992 years on record
- 1920s peak decade
- 33% born in that decade
Data updated Jun 2026
The verdict
328 girls have been named Hiroko since 1914, peaking in the 1920s, last recorded in 1992.
- 328
- total births
- 1914–1992
- years on record
- 1920s
- peak decade
- 33%
- born in that decade
1920s
Peak decade
33% of everyone ever named Hiroko was born in this single decade.
1919
Single peak year
19 babies were named Hiroko in 1919 - its busiest year on record.
Hiroko's usage pattern, beyond the headline number
Divide Hiroko's SSA record in two at 1935 and the more recent half accounts for 39% of all births, the earlier half the remaining 61%, consistent with a name more common in the past than in recent years. Its calmest year was 1914, with only 5 births recorded -- set against the 1919 peak of 19, that's the full swing in one name's fortunes.
Hiroko at a glance
Last recorded 1992Peak year
1919
Current rank
Unranked
Active since
1914
Hiroko popularity over time
Annual U.S. births registered with the Social Security Administration · 1914–1992
- Peak year (1919)
- 19
- Annual births at peak, across 79 years of records
Hiroko by decade
Total births in each ten-year window, peak vs trough at a glance
1920s was Hiroko's strongest decade.
109 babies received the name during that ten-year window, about 33% of all-time use.
Hiroko births by decade
Total births in each ten-year window
- 1910s 38
1910s
38 births
- 1920s
1920s
109 births
- 1930s
1930s
85 births
- 1940s 20
1940s
20 births
- 1970s 21
1970s
21 births
- 1980s
1980s
50 births
- 1990s 5
1990s
5 births
What this shows Peak: 1920s at 109 births (33% of all-time use).
Hiroko by state
Where Hiroko concentrates geographically, total births since 1914
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 76 | 23.2% |
| #2 | Hawaii | | 68 | 20.7% |
California share of Hiroko's total US births 23.2%
Even split
76 of 328 births nationwide. Compared to a flat distribution across 2 reporting states.
Frequently Asked Questions
How popular is the name Hiroko? ▼
328 babies have been named Hiroko since 1914. It was last recorded in 1992. The peak year was 1919 with 19 births.
When was Hiroko most popular? ▼
Hiroko was most popular in the 1920s decade with 109 total births. The single peak year was 1919.
Where is Hiroko most popular? ▼
The top states for the name Hiroko are California (76 births), Hawaii (68 births).
How long has the name Hiroko been used? ▼
The SSA has tracked Hiroko since 1914 -- 79 years through the most recent 1992 data.
What names are similar to Hiroko? ▼
Names with a similar sound or spelling include Hira, Hiromi, Hiraya, Hiral, and 4 more. These share a common prefix and are also used for girls.
What to do with Hiroko's data
- Hiroko's decade-level peak was the 1920s (109 total births); usage has since declined to 5 in the 1990s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Hirokos (76 births) -- see the full state breakdown if geography matters to your decision. California 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 Hiroko
Nearby Names Like Hiroko
Names with a similar sound, spelling, or feel to Hiroko
Hira Girl
#4248 681 births
Hiromi Girl
#8533 322 births
Hiraya Girl
#5957 101 births
Hiral Girl
89 births
Hiromy Girl
40 births
Compare Hiroko side by side: Hiroko vs Hira Hiroko vs Hiromi Hiroko vs Hiraya
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, 1914–1992 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Hiroko: Baby Name Since 1914 - 328 Births, Peak 1919." NameAlmanac. Accessed via https://namealmanac.com/name/hiroko. 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 Hiroko 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.