How Many People Are Named Alfonso Arau?
There are approximately 1 people named Alfonso Arau 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 Alfonso with Census Bureau frequency data for the surname Arau. Below you will find a breakdown of both names, including popularity trends, gender data, and Census background data where it is available.
Estimated People with This Name
1
1 in 342,754,338 Americans
Combination Rarity
Very Rare
First Name
View full profileAlfonso
Last Name
View full profileArau
Alfonso: Popularity Over Time
Year-by-year SSA birth registrations for the first name Alfonso. The peak year was 1991 with 580 births. The average person named Alfonso today is 42 years old.
Ancestry of the First Name Alfonso
In the 2020 Census, the first name Alfonso was most commonly recorded among people who identified as Hispanic (85.49%). The next largest recorded groups were Black (6.04%) and White (5.41%).
These percentages describe the people who had the first name Alfonso in the 2020 Census. They do not tell you the deeper origin or meaning of the name itself.
Read this as a snapshot of who already had the name in 2020, not as a trend line. The SSA chart above is still the better way to see how Alfonso rose or fell over time.
Ancestry of the Arau Surname
The surname Arau was most commonly recorded among people who identified as Hispanic in the 2020 Census.
This is a self-reported race and ethnicity breakdown for people who had the surname Arau in the published Census surname tables. It gives useful context around who was recorded with the name, but it does not tell the full family history of every Boone line.
How we calculated this
The first name "Alfonso" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Arau" appears at a rate of 0.04 per 100,000 people in the 2020 U.S. Census.
We do not use the Census first-name snapshot for the main estimate because it is only published once every 10 years. The latest public first-name Census file is from 2020, which is already 6 years old. SSA birth records plus CDC survival data give a better current estimate of how many people with the first name Alfonso are likely to be alive now.
Multiplying these frequencies against the U.S. population of ~343 million gives 1 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Alfonso
Other people with the surname Arau
Alfonso Arau: Questions and Answers
How many people are named Alfonso Arau?
We estimate approximately 1 people named Alfonso Arau are alive in the United States today. The first name Alfonso is shared by 30,023 Americans, and the surname Arau is shared by 133.
How rare is the name Alfonso Arau?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Alfonso is uncommon and the surname Arau is very rare.
Is Alfonso a male or female name?
Alfonso is predominantly male, with 99.7% of bearers being male and 0.3% female. It peaked in popularity in 1991 and the average bearer today is 42 years old.
What does the Census say about the first name Alfonso?
In the 2020 Census, the first name Alfonso was most commonly recorded among people who identified as Hispanic (85.49%). The next largest recorded groups were Black (6.04%) and White (5.41%). These percentages describe the people who had the name in the 2020 Census, not the deeper origin of the name itself.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. When available, first-name Census background data comes from the 2020 U.S. Census Bureau first-name tables. Surname data comes from the 2020 U.S. Census Bureau. Full methodology.
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