Thea Biondi
There are approximately 1 people named Thea Biondi 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 Thea with Census Bureau frequency data for the surname Biondi. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Thea
17K
Alive today
Named Biondi
2.4K
Alive today
US population
343M
Denominator
Estimated living: 17K
Rarity: Uncommon
Gender: Female
Peak year: 2018
Average age: 20
Top Census group: White (73.0%)
Estimated bearers: 2.4K
Rarity: Rare
Census rank: #14,026
Per 100K: 0.69
Top ancestry: White (92.1%)
First name trend
Thea: popularity over time
Year-by-year SSA birth registrations for the first name Thea. The peak year was 2018 with 1,208 births. The average person named Thea today is 20 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Thea
Self-reported race and ethnicity breakdown for people with the first name Thea, from the 2020 US Census Bureau first-name tables. The largest published group is White at 73.0%.
The bar chart below shows how people with the first name Thea described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Thea at the time of the Census. A first name does not determine a person's race or ethnicity.
- White73.0% · 9,784
- Black or African American7.1% · 950
- Asian and Pacific Islander7.0% · 942
- Two or more races6.6% · 886
- Hispanic or Latino5.5% · 736
- American Indian and Alaska Native0.8% · 112
Ethnicity
Ancestry of the Biondi surname
Self-reported race and ethnicity breakdown for people with the surname Biondi, from the 2020 US Census Bureau. The largest group is White at 92.1%.
The bar chart below shows how people with the surname Biondi described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Biondi at the time of the Census. A surname does not determine a person's race or ethnicity.
- White92.1% · 1,894
- Hispanic or Latino5.6% · 115
- Two or more races1.6% · 33
- Black or African American0.4% · 8
- Asian and Pacific Islander0.3% · 6
- American Indian and Alaska Native0.0% · 1
Methodology
How we calculated this
The first name Thea has a living-bearer frequency of 0.0051% of the US population, based on 17,363 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Thea right now.
The surname Biondi appears at a rate of 0.69 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0007%.
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 Thea Biondi. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Thea
Related
Other people with the surname Biondi
FAQ
Thea Biondi: questions and answers
How many people are named Thea Biondi?
We estimate approximately 1 people in the United States share the full name Thea Biondi. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0051%) with the surname frequency (0.69 per 100K) against the current US population.
How rare is the name Thea Biondi?
We classify Thea Biondi as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Thea a male or female name?
Thea is predominantly female. Out of 19,242 total SSA registrations, 0.0% were male and 100.0% were female. See the full Thea 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 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many people are called Thea Biondi?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.