How Many People Are Named Thea Gill?
There are approximately 4 people named Thea Gill living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 85,688,585 Americans.
This estimate combines SSA birth records for the first name Thea with Census Bureau frequency data for the surname Gill. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
4
1 in 85,688,585 Americans
Combination Rarity
Very Rare
First Name
View full profileThea
Last Name
View full profileGill
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.
Ancestry of the Gill Surname
Self-reported race and ethnicity breakdown for people with the surname Gill, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Thea" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Gill" appears at a rate of 25.41 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 4 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Thea Gill: Questions and Answers
How many people are named Thea Gill?
We estimate approximately 4 people named Thea Gill are alive in the United States today. The first name Thea is shared by 17,363 Americans, and the surname Gill is shared by 85,350.
How rare is the name Thea Gill?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 85,688,585 Americans. The first name Thea is uncommon and the surname Gill is uncommon.
Is Thea a male or female name?
Thea is predominantly female, with 0.0% of bearers being male and 100.0% female. It peaked in popularity in 2018 and the average bearer today is 20 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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