How Many People Are Named Jefferson Brown?
There are approximately 90 people named Jefferson Brown living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 3,808,382 Americans.
This estimate combines SSA birth records for the first name Jefferson with Census Bureau frequency data for the surname Brown. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
90
1 in 3,808,382 Americans
Combination Rarity
Rare
First Name
View full profileJefferson
Last Name
View full profileBrown
Jefferson: Popularity Over Time
Year-by-year SSA birth registrations for the first name Jefferson. The peak year was 2009 with 444 births. The average person named Jefferson today is 34 years old.
Ancestry of the Brown Surname
Self-reported race and ethnicity breakdown for people with the surname Brown, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Jefferson" 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 "Brown" appears at a rate of 487.16 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 90 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Jefferson
Other people with the surname Brown
Jefferson Brown: Questions and Answers
How many people are named Jefferson Brown?
We estimate approximately 90 people named Jefferson Brown are alive in the United States today. The first name Jefferson is shared by 18,500 Americans, and the surname Brown is shared by 1,636,337.
How rare is the name Jefferson Brown?
This name combination is classified as Rare, occurring at a rate of about 1 in 3,808,382 Americans. The first name Jefferson is uncommon and the surname Brown is very common.
Is Jefferson a male or female name?
Jefferson is predominantly male, with 100.0% of bearers being male and 0.0% female. It peaked in popularity in 2009 and the average bearer today is 34 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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