How Many People Are Named Kathleen Mcclellan?
There are approximately 37 people named Kathleen Mcclellan living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 9,263,631 Americans.
This estimate combines SSA birth records for the first name Kathleen with Census Bureau frequency data for the surname Mcclellan. 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
37
1 in 9,263,631 Americans
Combination Rarity
Rare
First Name
View full profileKathleen
Last Name
View full profileMcclellan
Kathleen: Popularity Over Time
Year-by-year SSA birth registrations for the first name Kathleen. The peak year was 1951 with 26,749 births. The average person named Kathleen today is 63 years old.
Ancestry of the First Name Kathleen
In the 2020 Census, the first name Kathleen was most commonly recorded among people who identified as White (92.72%). The next largest recorded groups were Hispanic (2.41%) and Black (1.66%).
These percentages describe the people who had the first name Kathleen 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 Kathleen rose or fell over time.
Ancestry of the Mcclellan Surname
The surname Mcclellan 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 Mcclellan 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 "Kathleen" has an estimated frequency of 0.132% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Mcclellan" appears at a rate of 8.16 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 Kathleen are likely to be alive now.
Multiplying these frequencies against the U.S. population of ~343 million gives 37 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Kathleen
Other people with the surname Mcclellan
Kathleen Mcclellan: Questions and Answers
How many people are named Kathleen Mcclellan?
We estimate approximately 37 people named Kathleen Mcclellan are alive in the United States today. The first name Kathleen is shared by 452,244 Americans, and the surname Mcclellan is shared by 27,971.
How rare is the name Kathleen Mcclellan?
This name combination is classified as Rare, occurring at a rate of about 1 in 9,263,631 Americans. The first name Kathleen is common and the surname Mcclellan is uncommon.
Is Kathleen a male or female name?
Kathleen is predominantly female, with 0.2% of bearers being male and 99.8% female. It peaked in popularity in 1951 and the average bearer today is 63 years old.
What does the Census say about the first name Kathleen?
In the 2020 Census, the first name Kathleen was most commonly recorded among people who identified as White (92.72%). The next largest recorded groups were Hispanic (2.41%) and Black (1.66%). 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.
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