Sumire Tobio
There are approximately 1 people named Sumire Tobio living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Sumire with Census Bureau frequency data for the surname Tobio. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Sumire
113
Alive today
Named Tobio
138
Alive today
US population
343M
Denominator
Estimated living: 113
Rarity: Very Rare
Gender: Female
Peak year: 2018
Average age: 12
Estimated bearers: 138
Rarity: Very Rare
Census rank: #142,049
Per 100K: 0.04
Top ancestry: White (50.0%)
First name trend
Sumire: popularity over time
Year-by-year SSA birth registrations for the first name Sumire. The peak year was 2018 with 11 births. The average person named Sumire today is 12 years old.
Babies born per year
Ethnicity
Ancestry of the Tobio surname
Self-reported race and ethnicity breakdown for people with the surname Tobio, from the 2020 US Census Bureau. The largest group is White at 50.0%.
The bar chart below shows how people with the surname Tobio described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Tobio at the time of the Census. A surname does not determine a person's race or ethnicity.
- White50.0% · 60
- Hispanic or Latino50.0% · 60
Methodology
How we calculated this
The first name Sumire has a living-bearer frequency of 0.0000% of the US population, based on 113 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Tobio appears at a rate of 0.04 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0000%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Sumire Tobio. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Sumire
FAQ
Sumire Tobio: questions and answers
How many people are named Sumire Tobio?
We estimate approximately 1 people in the United States share the full name Sumire Tobio. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0000%) with the surname frequency (0.04 per 100K) against the current US population.
How rare is the name Sumire Tobio?
We classify Sumire Tobio as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Sumire a male or female name?
Sumire is predominantly female. Out of 114 total SSA registrations, 0.0% were male and 100.0% were female. See the full Sumire profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many people are named Sumire Tobio?
Want to know how common the name Sumire Tobio is? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.