Girls' name · since 1915
Kazuko
398 babies named Kazuko in U.S. Social Security records since 1915, with the highest year being 1927. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #13,550 of 72,339
- all-time among girls
- 398
- born since 1915
- 1920s
- peak decade
398 girls have been named Kazuko since 1915, though it isn't currently a top-ranked name.
Social Security Administration records show Kazuko recorded 398 times among girls since 1915, 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 1915 to 1945.
- #13,550 of 72,339 all-time among girls
- 398 born since 1915
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Kazuko ranks #13,550 of 72,339 girls' names by all-time recorded births (highest first). 398 born since 1915, peaking in the 1920s.
- #13,550 of 72,339
- all-time among girls
- 398
- born since 1915
- 1920s
- peak decade
Kazuko's 398 recorded births place it above 81.24% of the 72,339 girls names in the full SSA archive.
The state file records this name in 3 jurisdictions, led by California.
Kazuko's usage pattern, beyond the headline number
Splitting Kazuko's full recorded timeline at 1928, 44% of its total births fall in the more recent half of the record versus 56% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1915, with just 5 recorded births -- worth weighing against the 1927 peak of 63 to see the full range of the name's swing in popularity.
Kazuko popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–1945
- Peak year (1927)
- 63
- Annual births at peak, across 31 years of records
Kazuko by decade
1920s is the heaviest window (214 births, 54% of the file).
1920s was Kazuko's strongest decade.
214 babies received the name during that ten-year window, about 54% of all-time use.
Kazuko births by decade
Total births in each ten-year window
- 1910s 56
1910s
56 births
- 1920s
1920s
214 births
- 1930s
1930s
106 births
- 1940s 22
1940s
22 births
What this shows Peak: 1920s at 214 births (54% of all-time use).
Kazuko by state
Where Kazuko concentrates geographically, total births since 1915
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 196 | 49.2% |
| #2 | Hawaii | | 69 | 17.3% |
| #3 | Washington | | 24 | 6.0% |
196 of 398 births nationwide. Compared to a flat distribution across 3 reporting states.
Frequently Asked Questions
How popular is the name Kazuko? ▼
Where does Kazuko sit in the SSA name archive? ▼
When was Kazuko most popular? ▼
Where is Kazuko most popular? ▼
How long has the name Kazuko been used? ▼
What names are similar to Kazuko? ▼
What to do with Kazuko's data
- Kazuko's decade-level peak was the 1920s (214 total births); usage has since declined to 22 in the 1940s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Kazukos (196 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Kazuko
Nearby Names Like Kazuko
Names with a similar sound, spelling, or feel to Kazuko
Compare Kazuko side by side: Kazuko vs Kaziah Kazuko vs Kazia Kazuko vs Kazandra
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Kazuko: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1927)
Similar record span (~30 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, 1915–1945 (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 Kazuko 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.