How Many People Are Named Sumako?
An estimated 1 people in the United States have the first name Sumako. It is almost exclusively a female name. The average bearer is 75 years old, and Sumako peaked in popularity in 1923 with 7 births that year.
Below you will find a full statistical profile of Sumako 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 Sumako paired with any surname.
Key Insights
- With an average bearer age of 75, Sumako is a vintage name most associated with earlier generations. Most living bearers were born before 1961.
- Sumako 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
Female
100.0% confidence
Average Age
75
years old
Peak Year
1923
7 births
Total Registered
34
since 1880
Gender Distribution for Sumako
Sumako is almost exclusively a female name. Out of 34 total births registered, 100.0% were female.
Sumako as a female name
Ranked #5,006 in 1932
5 female births in 1932
Peak: 1923 (7 births)
Sumako: Popularity Over Time
SSA records for Sumako span from the 1910s to the 1930s, covering 3 decades of naming data. The most popular decade for this name was the 1920s, when 18 babies were registered. Sumako has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Sumako by Decade
How has Sumako 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.
Sumako by State
Sumako + Last Name Combinations
How many people share a full name with Sumako as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sumako
Other first names starting with S with a similar number of bearers.
Sumako: Questions and Answers
How many people in the U.S. are named Sumako?
We estimate approximately 1 people named Sumako 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 Sumako a common name?
Sumako is classified as "Very Rare" and is more popular than 3.8% of all first names in the SSA database. A total of 34 births have been registered with this name since 1880.
When was Sumako most popular?
Sumako reached peak popularity in 1923, when 7 babies were given this name. The average age of a living person named Sumako is approximately 75 years old, reflecting when the name was most commonly given.
Is Sumako a female name?
Sumako is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Sumako Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sumako Smith, Sumako Johnson, Sumako 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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