How Many People Are Named Sean Astin?
There are approximately 1 people named Sean Astin 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 Sean with Census Bureau frequency data for the surname Astin. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
1
1 in 342,754,338 Americans
Combination Rarity
Very Rare
First Name
View full profileSean
Last Name
View full profileAstin
Sean: Popularity Over Time
Year-by-year SSA birth registrations for the first name Sean. The peak year was 1990 with 12,070 births. The average person named Sean today is 39 years old.
Ancestry of the Astin Surname
Self-reported race and ethnicity breakdown for people with the surname Astin, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Sean" has an estimated frequency of 0.118% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Astin" appears at a rate of 0.32 per 100,000 people in the 2010 U.S. Census.
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 Sean
Other people with the surname Astin
Sean Astin: Questions and Answers
How many people are named Sean Astin?
We estimate approximately 1 people named Sean Astin are alive in the United States today. The first name Sean is shared by 403,789 Americans, and the surname Astin is shared by 1,075.
How rare is the name Sean Astin?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Sean is common and the surname Astin is rare.
Is Sean a male or female name?
Sean is predominantly male, with 99.3% of bearers being male and 0.7% female. It peaked in popularity in 1990 and the average bearer today is 39 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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