Theo Angelopoulos
There are approximately 1 people named Theo Angelopoulos 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 Theo with Census Bureau frequency data for the surname Angelopoulos. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Theo
29K
Alive today
Named Angelopoulos
514
Alive today
US population
343M
Denominator
Estimated living: 29K
Rarity: Uncommon
Gender: Male
Peak year: 2023
Average age: 11
Estimated bearers: 514
Rarity: Very Rare
Census rank: #47,006
Per 100K: 0.15
Top ancestry: White (95.1%)
First name trend
Theo: popularity over time
Year-by-year SSA birth registrations for the first name Theo. The peak year was 2023 with 4,179 births. The average person named Theo today is 11 years old.
Babies born per year
Ethnicity
Ancestry of the Angelopoulos surname
Self-reported race and ethnicity breakdown for people with the surname Angelopoulos, from the 2010 US Census Bureau. The largest group is White at 95.1%.
- White95.1%
- Hispanic or Latino2.6%
- Two or more races1.3%
Methodology
How we calculated this
The first name Theo has a living-bearer frequency of 0.0086% of the US population, based on 29,344 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Angelopoulos appears at a rate of 0.15 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0002%.
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 Theo Angelopoulos. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Theo Angelopoulos: questions and answers
How many people are named Theo Angelopoulos?
We estimate approximately 1 people in the United States share the full name Theo Angelopoulos. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0086%) with the surname frequency (0.15 per 100K) against the current US population.
How rare is the name Theo Angelopoulos?
We classify Theo Angelopoulos as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Theo a male or female name?
Theo is predominantly male. Out of 35,340 total SSA registrations, 90.1% were male and 9.9% were female. See the full Theo 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 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.