How Many People Are Named Joanna Cassidy?
There are approximately 8 people named Joanna Cassidy living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 42,844,292 Americans.
This estimate combines SSA birth records for the first name Joanna 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
8
1 in 42,844,292 Americans
Combination Rarity
Very Rare
First Name
View full profileJoanna
Last Name
View full profileCassidy
Joanna: Popularity Over Time
Year-by-year SSA birth registrations for the first name Joanna. The peak year was 1984 with 3,353 births. The average person named Joanna today is 37 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 "Joanna" has an estimated frequency of 0.0274% 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 8 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Joanna
Other people with the surname Cassidy
Joanna Cassidy: Questions and Answers
How many people are named Joanna Cassidy?
We estimate approximately 8 people named Joanna Cassidy are alive in the United States today. The first name Joanna is shared by 94,050 Americans, and the surname Cassidy is shared by 30,264.
How rare is the name Joanna Cassidy?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 42,844,292 Americans. The first name Joanna is uncommon and the surname Cassidy is uncommon.
Is Joanna a male or female name?
Joanna is predominantly female, with 0.3% of bearers being male and 99.7% female. It peaked in popularity in 1984 and the average bearer today is 37 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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