Total births
10
Recorded 1921–1923 Girls' name Peak 1921 10 births
Ikuko — girls' name
10 babies named Ikuko in U.S. Social Security records since 1921, with the highest year being 1921. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
1920s
Peak decade
100% of everyone ever named Ikuko was born in this single decade.
1921
Single peak year
5 babies were named Ikuko in 1921 — its busiest year on record.
What the Data Says About Ikuko
The Social Security Administration has registered 10 babies named Ikuko between 1921 and 1923, spanning 3 consecutive years of U.S. birth records. As a girl's name, Ikuko currently falls outside the top 1,000 girls' names for 1923. The name reached its historical peak in 1921, when 5 babies received it in a single year.
Decade-level aggregation shows that Ikuko performed strongest in the 1920s, accumulating 10 births during that ten-year window.
No etymological entry is currently available for Ikuko in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 10 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.
Ikuko at a glance
Last recorded 1923Peak year
1921
Current rank
Unranked
Active since
1921
Ikuko popularity over time
Annual U.S. births registered with the Social Security Administration · 1923–1921
- Peak year (1921)
- 5
- Annual births at peak — across 3 years of records
Ikuko by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1920s
- 10 births that decade — 100% of Ikuko's all-time total
Frequently Asked Questions
How popular is the name Ikuko? ▼
10 babies have been named Ikuko since 1921. It was last recorded in 1923. The peak year was 1921 with 5 births.
When was Ikuko most popular? ▼
Ikuko was most popular in the 1920s decade with 10 total births. The single peak year was 1921.
How long has the name Ikuko been used? ▼
Ikuko has been recorded in Social Security data since 1921, spanning 3 years of data through 1923.
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Data Sources
Data as of 2024. Source: U.S. Social Security Administration (SSA).
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1921–1923 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.
State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.