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 ancestry information.
Expected bearers
1
1 in 342,754,338
Named Alfonso
30K
Alive today
Named Arau
137
Alive today
US population
343M
Denominator
Estimated living: 30K
Rarity: Uncommon
Gender: Male
Peak year: 1991
Average age: 42
Estimated bearers: 137
Rarity: Very Rare
Census rank: #145,220
Per 100K: 0.04
Top ancestry: Hispanic (54.4%)
First name trend
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.
Babies born per year
Ethnicity
Ancestry of the Arau surname
Self-reported race and ethnicity breakdown for people with the surname Arau, from the 2010 US Census Bureau. The largest group is Hispanic at 54.4%.
- Hispanic or Latino54.4%
- White41.2%
Methodology
How we calculated this
The first name Alfonso has a living-bearer frequency of 0.0088% of the US population, based on 30,023 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Arau appears at a rate of 0.04 per 100,000 residents in the 2010 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 Alfonso Arau. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Alfonso
Related
Other people with the surname Arau
FAQ
Alfonso Arau: questions and answers
How many people are named Alfonso Arau?
We estimate approximately 1 people in the United States share the full name Alfonso Arau. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0088%) with the surname frequency (0.04 per 100K) against the current US population.
How rare is the name Alfonso Arau?
We classify Alfonso Arau as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Alfonso a male or female name?
Alfonso is predominantly male. Out of 41,353 total SSA registrations, 99.7% were male and 0.3% were female. See the full Alfonso 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 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.