Welles Blair
There are approximately 1 people named Welles Blair 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 Welles with Census Bureau frequency data for the surname Blair. 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 Welles
425
Alive today
Named Blair
86K
Alive today
US population
343M
Denominator
Estimated living: 425
Rarity: Very Rare
Gender: Male
Peak year: 2021
Average age: 7
Estimated bearers: 86K
Rarity: Uncommon
Census rank: #428
Per 100K: 25.22
Top ancestry: White (76.3%)
First name trend
Welles: popularity over time
Year-by-year SSA birth registrations for the first name Welles. The peak year was 2021 with 56 births. The average person named Welles today is 7 years old.
Babies born per year
Ethnicity
Ancestry of the Blair surname
Self-reported race and ethnicity breakdown for people with the surname Blair, from the 2020 US Census Bureau. The largest group is White at 76.3%.
The bar chart below shows how people with the surname Blair 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 Blair at the time of the Census. A surname does not determine a person's race or ethnicity.
- White76.3% · 57,512
- Black or African American14.6% · 10,985
- Two or more races4.4% · 3,319
- Hispanic or Latino3.4% · 2,571
- Asian and Pacific Islander0.7% · 545
- American Indian and Alaska Native0.6% · 452
Methodology
How we calculated this
The first name Welles has a living-bearer frequency of 0.0001% of the US population, based on 425 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Blair appears at a rate of 25.22 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0252%.
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 Welles Blair. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people with the surname Blair
FAQ
Welles Blair: questions and answers
How many people are named Welles Blair?
We estimate approximately 1 people in the United States share the full name Welles Blair. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0001%) with the surname frequency (25.22 per 100K) against the current US population.
How rare is the name Welles Blair?
We classify Welles Blair as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Welles a male or female name?
Welles is predominantly male. Out of 438 total SSA registrations, 97.7% were male and 2.3% were female. See the full Welles 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 named Welles Blair?
Want to know how common the name Welles Blair is? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.