How Many People Are Named Sincere Brown?
There are approximately 53 people named Sincere Brown living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 6,467,063 Americans.
This estimate combines SSA birth records for the first name Sincere 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
53
1 in 6,467,063 Americans
Combination Rarity
Rare
First Name
View full profileSincere
Last Name
View full profileBrown
Sincere: Popularity Over Time
Year-by-year SSA birth registrations for the first name Sincere. The peak year was 2022 with 582 births. The average person named Sincere today is 13 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 "Sincere" 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 53 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Sincere
Other people with the surname Brown
Sincere Brown: Questions and Answers
How many people are named Sincere Brown?
We estimate approximately 53 people named Sincere Brown are alive in the United States today. The first name Sincere is shared by 10,967 Americans, and the surname Brown is shared by 1,636,337.
How rare is the name Sincere Brown?
This name combination is classified as Rare, occurring at a rate of about 1 in 6,467,063 Americans. The first name Sincere is uncommon and the surname Brown is very common.
Is Sincere a male or female name?
Sincere is predominantly male, with 87.1% of bearers being male and 12.9% female. It peaked in popularity in 2022 and the average bearer today is 13 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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