Mamoru Izawa
There are approximately 1 people named Mamoru Izawa 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 Mamoru with Census Bureau frequency data for the surname Izawa. 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 Mamoru
8
Alive today
Named Izawa
162
Alive today
US population
343M
Denominator
Estimated living: 8
Rarity: Very Rare
Gender: Male
Peak year: 1924
Average age: 100
Top Census group: Asian and Pacific Islander (91.4%)
Estimated bearers: 162
Rarity: Very Rare
Census rank: #127,013
Per 100K: 0.05
Top ancestry: Asian/Pacific Islander (82.3%)
First name trend
Mamoru: popularity over time
Year-by-year SSA birth registrations for the first name Mamoru. The peak year was 1924 with 16 births. The average person named Mamoru today is 100 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Mamoru
Self-reported race and ethnicity breakdown for people with the first name Mamoru, from the 2020 US Census Bureau first-name tables. The largest published group is Asian and Pacific Islander at 91.4%.
The bar chart below shows how people with the first name Mamoru 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 name Mamoru at the time of the Census. A first name does not determine a person's race or ethnicity.
- Asian and Pacific Islander91.4% · 139
- Two or more races3.9% · 6
- Hispanic or Latino2.0% · 3
- White1.3% · 2
- Black or African American1.3% · 2
Ethnicity
Ancestry of the Izawa surname
Self-reported race and ethnicity breakdown for people with the surname Izawa, from the 2020 US Census Bureau. The largest group is Asian/Pacific Islander at 82.3%.
The bar chart below shows how people with the surname Izawa 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 Izawa at the time of the Census. A surname does not determine a person's race or ethnicity.
- Asian and Pacific Islander82.3% · 116
- Hispanic or Latino9.2% · 13
- Two or more races6.4% · 9
- White1.4% · 2
- American Indian and Alaska Native0.7% · 1
Methodology
How we calculated this
The first name Mamoru has a living-bearer frequency of 0.0000% of the US population, based on 8 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Mamoru right now.
The surname Izawa appears at a rate of 0.05 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 Mamoru Izawa. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Mamoru Izawa: questions and answers
How many people are named Mamoru Izawa?
We estimate approximately 1 people in the United States share the full name Mamoru Izawa. 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 (0.05 per 100K) against the current US population.
How rare is the name Mamoru Izawa?
We classify Mamoru Izawa as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Mamoru a male or female name?
Mamoru is predominantly male. Out of 182 total SSA registrations, 100.0% were male and 0.0% were female. See the full Mamoru 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 share the full name Mamoru Izawa?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.