How Many People Are Named Dean Deblois?
There are approximately 1 people named Dean Deblois 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 Dean with Census Bureau frequency data for the surname Deblois. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
1
1 in 342,754,338 Americans
Combination Rarity
Very Rare
First Name
View full profileDean
Last Name
View full profileDeblois
Dean: Popularity Over Time
Year-by-year SSA birth registrations for the first name Dean. The peak year was 1961 with 4,965 births. The average person named Dean today is 48 years old.
Ancestry of the Deblois Surname
Self-reported race and ethnicity breakdown for people with the surname Deblois, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Dean" has an estimated frequency of 0.0411% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Deblois" appears at a rate of 0.45 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 1 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Dean
Dean Deblois: Questions and Answers
How many people are named Dean Deblois?
We estimate approximately 1 people named Dean Deblois are alive in the United States today. The first name Dean is shared by 140,847 Americans, and the surname Deblois is shared by 1,512.
How rare is the name Dean Deblois?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Dean is common and the surname Deblois is rare.
Is Dean a male or female name?
Dean is predominantly male, with 98.5% of bearers being male and 1.5% female. It peaked in popularity in 1961 and the average bearer today is 48 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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