How Many People Are Named Caspian Johns?
There are approximately 1 people named Caspian Johns 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 Caspian with Census Bureau frequency data for the surname Johns. 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
1
1 in 342,754,338 Americans
Combination Rarity
Very Rare
First Name
View full profileCaspian
Last Name
View full profileJohns
Caspian: Popularity Over Time
Year-by-year SSA birth registrations for the first name Caspian. The peak year was 2024 with 492 births. The average person named Caspian today is 7 years old.
Ancestry of the First Name Caspian
In the 2020 Census, the first name Caspian was most commonly recorded among people who identified as White (65.01%). The next largest recorded groups were Hispanic (17.59%) and Two or More Races (10.83%).
These percentages describe the people who had the first name Caspian 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 Caspian rose or fell over time.
Ancestry of the Johns Surname
The surname Johns 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 Johns 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 "Caspian" 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 "Johns" appears at a rate of 15.35 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 Caspian are likely to be alive now.
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 Caspian
Other people with the surname Johns
Caspian Johns: Questions and Answers
How many people are named Caspian Johns?
We estimate approximately 1 people named Caspian Johns are alive in the United States today. The first name Caspian is shared by 3,533 Americans, and the surname Johns is shared by 52,626.
How rare is the name Caspian Johns?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 342,754,338 Americans. The first name Caspian is rare and the surname Johns is uncommon.
Is Caspian a male or female name?
Caspian is predominantly male, with 99.9% of bearers being male and 0.1% female. It peaked in popularity in 2024 and the average bearer today is 7 years old.
What does the Census say about the first name Caspian?
In the 2020 Census, the first name Caspian was most commonly recorded among people who identified as White (65.01%). The next largest recorded groups were Hispanic (17.59%) and Two or More Races (10.83%). 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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