How Many People Are Named Kazuko?
Complete statistics for the name Kazuko: rarity score, gender breakdown, age distribution, historical popularity, worldwide data, meaning and origin.
Kazuko is a Japanese feminine name meaning "harmonious child" or "obedient child," and it's incredibly rare in the United States. Only about 40 people named Kazuko are living in America today, which means roughly 1 in 8,148,587 Americans carry this name. Nearly all of them are over 60, with an average age of 99.
📖 Meaning & Origin
Life-path number 22 is known as the Master Builder, and it's considered one of the most powerful numbers in numerology. People with this number are believed to possess extraordinary potential to turn ambitious dreams into tangible reality through discipline and vision.
🌍 Worldwide Usage
⚥ Gender Distribution
📊 Births by Age Group
Avg Cohort Age: 99All 398 recorded US births for this name, grouped by the age those individuals would be today. Not adjusted for survival, so the number living today is lower (see the living estimate above).
📈 Popularity Over Time
Peak: 1927Annual US births from SSA records · Trend: Stable
🏆 Name Scorecard
Scores 0–100 based on statistical analysis of US and worldwide name frequency
📜 Kazuko Through the Generations
Kazuko tells a fascinating generational story that's deeply tied to early 20th-century Japanese immigration to the United States. All 398 recorded births cluster heavily in the pre-World War II era, with the peak year being 1927 when 63 babies received this name. It's clear that the name arrived with Japanese families settling in America during that period, and its use didn't continue into later decades. Every single person named Kazuko in the US falls into the over-60 age bracket, with zero births recorded among those under 30 or between 30 and 60. That makes this one of the most age-concentrated names you'll find in American records. The trend has been stable for decades, but only because the name essentially stopped being given long ago. Globally, Kazuko ranks #4,987 with about 209,448 living bearers, almost all in Japan, where it was once a tremendously popular choice. In the US, it's a quiet reminder of a specific chapter in immigration history.
📍 State Distribution (Top 10)
🌿 Related Names by Origin
Other names sharing Kazuko's Japanese roots
📄 About the Name Kazuko
How Many People Have the Name Kazuko?
Based on Social Security Administration birth records and age-adjusted survival modeling, approximately 40 people in the United States currently share the name Kazuko. That works out to roughly 1 in every 8,148,587 Americans, placing it in the Very Rare category.
Is Kazuko a Common or Rare Name?
Kazuko is classified as Very Rare. The rarity scale runs from Very Common (shared by millions) through Common, Uncommon, Rare, and Very Rare. Understanding where a name sits helps parents gauge uniqueness, genealogists narrow down records, and individuals settle debates about their own name's distinctiveness.
What Does the Name Kazuko Mean?
Kazuko means "Harmonious child" and comes from Japanese origins. The name carries a life-path numerology number of 22.
Gender Breakdown
Of all recorded bearers of Kazuko in SSA data, approximately 0% are male and 100% are female.
When Was Kazuko Most Popular?
The name Kazuko reached peak popularity in 1927, with 63 babies registered that year. Current trend: Stable.
How Is This Data Calculated?
All figures are statistical estimates, not exact government headcounts. The underlying data comes from the SSA National Baby Names dataset. Full methodology is explained on the methodology page.
❓ Frequently Asked Questions
How many people are named Kazuko?
Approximately 40 people named Kazuko live in the United States today. All-time US births on record total 398. That works out to roughly 1 in 8,148,587 Americans.
Is Kazuko a rare name?
Kazuko is classified as Very Rare in the United States. Approximately 1 in every 8,148,587 Americans has this name.
What does the name Kazuko mean?
Kazuko means "Harmonious child" and comes from Japanese origins.
Is Kazuko more male or female?
Based on SSA records, 0% of people named Kazuko are male and 100% are female.
When was Kazuko most popular?
Kazuko peaked in 1927 with 63 births that year. Current trend: Stable.
How accurate are these statistics?
All figures are statistical estimates based on SSA birth records and age-adjusted modeling. See the methodology page for full details.