Girls' name · since 1921
Ikuko
Since 1921, U.S. Social Security records show 10 babies named Ikuko, peaking in 1921. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #55,371 of 72,339
- all-time among girls
- 10
- born since 1921
- 1920s
- peak decade
10 girls have been named Ikuko since 1921, though it isn't currently a top-ranked name.
Ikuko has 10 recorded births among girls since 1921, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1920s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1921 to 1923.
- #55,371 of 72,339 all-time among girls
- 10 born since 1921
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Ikuko ranks #55,371 of 72,339 girls' names by all-time recorded births (highest first). 10 born since 1921, peaking in the 1920s.
- #55,371 of 72,339
- all-time among girls
- 10
- born since 1921
- 1920s
- peak decade
Ikuko's 10 recorded births place it above 21.24% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Ikuko's usage pattern, beyond the headline number
Divide Ikuko's SSA record in two at 1923 and the more recent half accounts for 50% of all births, the earlier half the remaining 50%, a genuinely balanced usage pattern. Its calmest year was 1921, with only 5 births recorded.
Ikuko popularity over time
Annual U.S. births registered with the Social Security Administration · 1921–1923
- Peak year (1921)
- 5
- Annual births at peak, across 3 years of records
Ikuko by decade
1920s is the heaviest window (10 births, 100% of the file).
1920s was Ikuko's strongest decade.
10 babies received the name during that ten-year window, about 100% of all-time use.
Ikuko births by decade
Total births in each ten-year window
- 1920s
1920s
10 births
What this shows Peak: 1920s at 10 births (100% of all-time use).
Frequently Asked Questions
How popular is the name Ikuko? ▼
Where does Ikuko sit in the SSA name archive? ▼
When was Ikuko most popular? ▼
How long has the name Ikuko been used? ▼
Keep exploring Ikuko
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Ikuko: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1921)
Similar record span (~2 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, 1921–1923 (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 Ikuko 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.