How Many People Are Named Katherleen?
An estimated 47 people in the United States have the first name Katherleen. It is almost exclusively a female name. The average bearer is 77 years old, and Katherleen peaked in popularity in 1920 with 13 births that year.
Below you will find a full statistical profile of Katherleen as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Katherleen paired with any surname.
Key Insights
- With an average bearer age of 77, Katherleen is a vintage name most associated with earlier generations. Most living bearers were born before 1959.
- Katherleen is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
47
About 1 in 7,292,645 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
77
years old
Peak Year
1920
13 births
Total Registered
200
since 1880
Gender Distribution for Katherleen
Katherleen is almost exclusively a female name. Out of 200 total births registered, 100.0% were female.
Katherleen as a female name
Ranked #7,077 in 1963
5 female births in 1963
Peak: 1920 (13 births)
Katherleen: Popularity Over Time
SSA records for Katherleen span from the 1910s to the 1960s, covering 6 decades of naming data. The most popular decade for this name was the 1920s, when 69 babies were registered. Katherleen has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Katherleen by Decade
How has Katherleen tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Katherleen + Last Name Combinations
How many people share a full name with Katherleen as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Katherleen
Other first names starting with K with a similar number of bearers.
Katherleen: Questions and Answers
How many people in the U.S. are named Katherleen?
We estimate approximately 47 people named Katherleen are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 7,292,645 Americans share this first name.
Is Katherleen a common name?
Katherleen is classified as "Very Rare" and is more popular than 53.4% of all first names in the SSA database. A total of 200 births have been registered with this name since 1880.
When was Katherleen most popular?
Katherleen reached peak popularity in 1920, when 13 babies were given this name. The average age of a living person named Katherleen is approximately 77 years old, reflecting when the name was most commonly given.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Katherleen was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
Is Katherleen a female name?
Katherleen is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
Why can Katherleen have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Katherleen peaked in 1920, and the average living bearer is about 77 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Katherleen Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Katherleen Smith, Katherleen Johnson, Katherleen Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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