Caspar Hayes
There are approximately 1 people named Caspar Hayes 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 Caspar with Census Bureau frequency data for the surname Hayes. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Caspar
342
Alive today
Named Hayes
214K
Alive today
US population
343M
Denominator
Estimated living: 342
Rarity: Very Rare
Gender: Male
Peak year: 2018
Average age: 16
Top Census group: White (69.4%)
Estimated bearers: 214K
Rarity: Common
Census rank: #133
Per 100K: 62.38
Top ancestry: White (66.9%)
First name trend
Caspar: popularity over time
Year-by-year SSA birth registrations for the first name Caspar. The peak year was 2018 with 25 births. The average person named Caspar today is 16 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Caspar
Self-reported race and ethnicity breakdown for people with the first name Caspar, from the 2020 US Census Bureau first-name tables. The largest published group is White at 69.4%.
The bar chart below shows how people with the first name Caspar described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Caspar at the time of the Census. A first name does not determine a person's race or ethnicity.
- White69.4% · 267
- Asian and Pacific Islander11.4% · 44
- Hispanic or Latino8.1% · 31
- Two or more races6.5% · 25
- Black or African American3.4% · 13
- American Indian and Alaska Native1.3% · 5
Ethnicity
Ancestry of the Hayes surname
Self-reported race and ethnicity breakdown for people with the surname Hayes, from the 2020 US Census Bureau. The largest group is White at 66.9%.
The bar chart below shows how people with the surname Hayes described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Hayes at the time of the Census. A surname does not determine a person's race or ethnicity.
- White66.9% · 124,809
- Black or African American24.0% · 44,683
- Two or more races4.5% · 8,432
- Hispanic or Latino3.2% · 5,995
- American Indian and Alaska Native0.7% · 1,378
- Asian and Pacific Islander0.6% · 1,148
Methodology
How we calculated this
The first name Caspar has a living-bearer frequency of 0.0001% of the US population, based on 342 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Caspar right now.
The surname Hayes appears at a rate of 62.38 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0624%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Caspar Hayes. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Caspar
Related
Other people with the surname Hayes
FAQ
Caspar Hayes: questions and answers
How many people are named Caspar Hayes?
We estimate approximately 1 people in the United States share the full name Caspar Hayes. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0001%) with the surname frequency (62.38 per 100K) against the current US population.
How rare is the name Caspar Hayes?
We classify Caspar Hayes as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Caspar a male or female name?
Caspar is predominantly male. Out of 381 total SSA registrations, 100.0% were male and 0.0% were female. See the full Caspar profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How common is the name Caspar Hayes?
Find out how many people are called Caspar Hayes on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.