How Many People Are Named Kathryne Johnson?
There are approximately 21 people named Kathryne Johnson living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 16,321,635 Americans.
This estimate combines SSA birth records for the first name Kathryne with Census Bureau frequency data for the surname Johnson. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
21
1 in 16,321,635 Americans
Combination Rarity
Rare
First Name
View full profileKathryne
Last Name
View full profileJohnson
Kathryne: Popularity Over Time
Year-by-year SSA birth registrations for the first name Kathryne. The peak year was 1990 with 117 births. The average person named Kathryne today is 47 years old.
Ancestry of the Johnson Surname
Self-reported race and ethnicity breakdown for people with the surname Johnson, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Kathryne" 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 "Johnson" appears at a rate of 655.24 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 21 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Kathryne
Other people with the surname Johnson
Kathryne Johnson: Questions and Answers
How many people are named Kathryne Johnson?
We estimate approximately 21 people named Kathryne Johnson are alive in the United States today. The first name Kathryne is shared by 3,159 Americans, and the surname Johnson is shared by 2,200,907.
How rare is the name Kathryne Johnson?
This name combination is classified as Rare, occurring at a rate of about 1 in 16,321,635 Americans. The first name Kathryne is rare and the surname Johnson is very common.
Is Kathryne a male or female name?
Kathryne is predominantly female, with 0.0% of bearers being male and 100.0% female. It peaked in popularity in 1990 and the average bearer today is 47 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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