Bertrand Blier
There are approximately 1 people named Bertrand Blier 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 Bertrand with Census Bureau frequency data for the surname Blier. 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 Bertrand
1.6K
Alive today
Named Blier
458
Alive today
US population
343M
Denominator
Estimated living: 1.6K
Rarity: Rare
Gender: Male
Peak year: 1924
Average age: 61
Top Census group: White (57.9%)
Estimated bearers: 458
Rarity: Very Rare
Census rank: #55,517
Per 100K: 0.13
Top ancestry: White (91.5%)
First name trend
Bertrand: popularity over time
Year-by-year SSA birth registrations for the first name Bertrand. The peak year was 1924 with 95 births. The average person named Bertrand today is 61 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Bertrand
Self-reported race and ethnicity breakdown for people with the first name Bertrand, from the 2020 US Census Bureau first-name tables. The largest published group is White at 57.9%.
The bar chart below shows how people with the first name Bertrand 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 Bertrand at the time of the Census. A first name does not determine a person's race or ethnicity.
- White57.9% · 1,359
- Black or African American31.1% · 731
- Asian and Pacific Islander4.4% · 103
- Two or more races2.9% · 69
- Hispanic or Latino2.9% · 67
- American Indian and Alaska Native0.8% · 19
Ethnicity
Ancestry of the Blier surname
Self-reported race and ethnicity breakdown for people with the surname Blier, from the 2020 US Census Bureau. The largest group is White at 91.5%.
The bar chart below shows how people with the surname Blier 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 Blier at the time of the Census. A surname does not determine a person's race or ethnicity.
- White91.5% · 365
- Hispanic or Latino5.3% · 21
- Two or more races1.8% · 7
- Asian and Pacific Islander1.0% · 4
- Black or African American0.5% · 2
Methodology
How we calculated this
The first name Bertrand has a living-bearer frequency of 0.0005% of the US population, based on 1,615 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 Bertrand right now.
The surname Blier appears at a rate of 0.13 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0001%.
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 Bertrand Blier. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Bertrand Blier: questions and answers
How many people are named Bertrand Blier?
We estimate approximately 1 people in the United States share the full name Bertrand Blier. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0005%) with the surname frequency (0.13 per 100K) against the current US population.
How rare is the name Bertrand Blier?
We classify Bertrand Blier as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Bertrand a male or female name?
Bertrand is predominantly male. Out of 3,991 total SSA registrations, 100.0% were male and 0.0% were female. See the full Bertrand 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 have the full name Bertrand Blier?
If you just want to know how common the name Bertrand Blier is, HowManyOfMe.org gives you the headline number in one glance.