How Many People Are Named Lois Brown?
There are approximately 385 people named Lois Brown living in the United States today. That makes this name combination uncommon, occurring at a rate of about 1 in 890,271 Americans.
This estimate combines SSA birth records for the first name Lois with Census Bureau frequency data for the surname Brown. Below you will find a breakdown of both names, including popularity trends, gender data, and Census background data where it is available.
Estimated People with This Name
385
1 in 890,271 Americans
Combination Rarity
Uncommon
First Name
View full profileLois
Last Name
View full profileBrown
Lois: Popularity Over Time
Year-by-year SSA birth registrations for the first name Lois. The peak year was 1927 with 10,587 births. The average person named Lois today is 74 years old.
Ancestry of the First Name Lois
In the 2020 Census, the first name Lois was most commonly recorded among people who identified as White (87.17%). The next largest recorded groups were Black (8.43%) and Two or More Races (1.47%).
These percentages describe the people who had the first name Lois in the 2020 Census. They do not tell you the deeper origin or meaning of the name itself.
Read this as a snapshot of who already had the name in 2020, not as a trend line. The SSA chart above is still the better way to see how Lois rose or fell over time.
Ancestry of the Brown Surname
The surname Brown was most commonly recorded among people who identified as White in the 2020 Census.
This is a self-reported race and ethnicity breakdown for people who had the surname Brown in the published Census surname tables. It gives useful context around who was recorded with the name, but it does not tell the full family history of every Boone line.
How we calculated this
The first name "Lois" has an estimated frequency of 0.0242% 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 463.73 per 100,000 people in the 2020 U.S. Census.
We do not use the Census first-name snapshot for the main estimate because it is only published once every 10 years. The latest public first-name Census file is from 2020, which is already 6 years old. SSA birth records plus CDC survival data give a better current estimate of how many people with the first name Lois are likely to be alive now.
Multiplying these frequencies against the U.S. population of ~343 million gives 385 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Lois
Other people with the surname Brown
Lois Brown: Questions and Answers
How many people are named Lois Brown?
We estimate approximately 385 people named Lois Brown are alive in the United States today. The first name Lois is shared by 83,078 Americans, and the surname Brown is shared by 1,589,457.
How rare is the name Lois Brown?
This name combination is classified as Uncommon, occurring at a rate of about 1 in 890,271 Americans. The first name Lois is uncommon and the surname Brown is very common.
Is Lois a male or female name?
Lois is predominantly female, with 0.8% of bearers being male and 99.2% female. It peaked in popularity in 1927 and the average bearer today is 74 years old.
What does the Census say about the first name Lois?
In the 2020 Census, the first name Lois was most commonly recorded among people who identified as White (87.17%). The next largest recorded groups were Black (8.43%) and Two or More Races (1.47%). These percentages describe the people who had the name in the 2020 Census, not the deeper origin of the name itself.
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. When available, first-name Census background data comes from the 2020 U.S. Census Bureau first-name tables. Surname data comes from the 2020 U.S. Census Bureau. Full methodology.
Try another name
How Many of Me