How Many People Are Named Shaun Cassidy?
There are approximately 6 people named Shaun Cassidy living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 57,125,723 Americans.
This estimate combines SSA birth records for the first name Shaun with Census Bureau frequency data for the surname Cassidy. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
6
1 in 57,125,723 Americans
Combination Rarity
Very Rare
First Name
View full profileShaun
Last Name
View full profileCassidy
Shaun: Popularity Over Time
Year-by-year SSA birth registrations for the first name Shaun. The peak year was 1978 with 6,221 births. The average person named Shaun today is 41 years old.
Ancestry of the Cassidy Surname
Self-reported race and ethnicity breakdown for people with the surname Cassidy, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Shaun" has an estimated frequency of 0.0202% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Cassidy" appears at a rate of 9.01 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 6 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Shaun
Other people with the surname Cassidy
Shaun Cassidy: Questions and Answers
How many people are named Shaun Cassidy?
We estimate approximately 6 people named Shaun Cassidy are alive in the United States today. The first name Shaun is shared by 69,150 Americans, and the surname Cassidy is shared by 30,264.
How rare is the name Shaun Cassidy?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 57,125,723 Americans. The first name Shaun is uncommon and the surname Cassidy is uncommon.
Is Shaun a male or female name?
Shaun is predominantly male, with 95.7% of bearers being male and 4.3% female. It peaked in popularity in 1978 and the average bearer today is 41 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.
Try another name
How Many of Me