How Many People Are Named Itsuo?
An estimated 1 people in the United States have the first name Itsuo. It is almost exclusively a male name. The average bearer is 121 years old, and Itsuo peaked in popularity in 1924 with 10 births that year.
Below you will find a full statistical profile of Itsuo as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Itsuo paired with any surname.
Key Insights
- With an average bearer age of 121, Itsuo is a vintage name most associated with earlier generations. Most living bearers were born before 1915.
- Itsuo is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
1
About 1 in 342,754,338 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
121
years old
Peak Year
1924
10 births
Total Registered
30
since 1880
Gender Distribution for Itsuo
Itsuo is almost exclusively a male name. Out of 30 total births registered, 100.0% were male.
Itsuo as a male name
Ranked #3,559 in 1932
6 male births in 1932
Peak: 1924 (10 births)
Itsuo: Popularity Over Time
SSA records for Itsuo span from the 1920s to the 1930s, covering 2 decades of naming data. The most popular decade for this name was the 1920s, when 24 babies were registered. Itsuo has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Itsuo by Decade
How has Itsuo tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Itsuo by State
Itsuo + Last Name Combinations
How many people share a full name with Itsuo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Itsuo
Other first names starting with I with a similar number of bearers.
Itsuo: Questions and Answers
How many people in the U.S. are named Itsuo?
We estimate approximately 1 people named Itsuo are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 342,754,338 Americans share this first name.
Is Itsuo a common name?
Itsuo is classified as "Very Rare" and is more popular than 3.8% of all first names in the SSA database. A total of 30 births have been registered with this name since 1880.
When was Itsuo most popular?
Itsuo reached peak popularity in 1924, when 10 babies were given this name. The average age of a living person named Itsuo is approximately 121 years old, reflecting when the name was most commonly given.
Is Itsuo a male name?
Itsuo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Itsuo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Itsuo Smith, Itsuo Johnson, Itsuo Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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