How Many People Are Named Casmer Johnson?
There are approximately 1 people named Casmer Johnson living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Casmer 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
1
1 in 342,754,338 Americans
Combination Rarity
Very Rare
First Name
View full profileCasmer
Last Name
View full profileJohnson
Casmer: Popularity Over Time
Year-by-year SSA birth registrations for the first name Casmer. The peak year was 1918 with 30 births. The average person named Casmer today is 111 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 "Casmer" 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 1 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Casmer
Other people with the surname Johnson
Casmer Johnson: Questions and Answers
How many people are named Casmer Johnson?
We estimate approximately 1 people named Casmer Johnson are alive in the United States today. The first name Casmer is shared by 6 Americans, and the surname Johnson is shared by 2,200,907.
How rare is the name Casmer Johnson?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Casmer is very rare and the surname Johnson is very common.
Is Casmer a male or female name?
Casmer is predominantly male, with 100.0% of bearers being male and 0.0% female. It peaked in popularity in 1918 and the average bearer today is 111 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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