How Many People Are Named Michael Castillon?
There are approximately 21 people named Michael Castillon living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 16,321,635 Americans.
This estimate combines SSA birth records for the first name Michael with Census Bureau frequency data for the surname Castillon. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
21
1 in 16,321,635 Americans
Combination Rarity
Rare
First Name
View full profileMichael
Last Name
View full profileCastillon
Michael: Popularity Over Time
Year-by-year SSA birth registrations for the first name Michael. The peak year was 1957 with 93,041 births. The average person named Michael today is 50 years old.
Ancestry of the Castillon Surname
Self-reported race and ethnicity breakdown for people with the surname Castillon, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Michael" has an estimated frequency of 1.09% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Castillon" appears at a rate of 0.56 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 21 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Michael
Other people with the surname Castillon
Michael Castillon: Questions and Answers
How many people are named Michael Castillon?
We estimate approximately 21 people named Michael Castillon are alive in the United States today. The first name Michael is shared by 3,738,917 Americans, and the surname Castillon is shared by 1,919.
How rare is the name Michael Castillon?
This name combination is classified as Rare, occurring at a rate of about 1 in 16,321,635 Americans. The first name Michael is very common and the surname Castillon is rare.
Is Michael a male or female name?
Michael is predominantly male, with 99.5% of bearers being male and 0.5% female. It peaked in popularity in 1957 and the average bearer today is 50 years old.
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. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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