Cyrus Trosclair
There are approximately 1 people named Cyrus Trosclair 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 Cyrus with Census Bureau frequency data for the surname Trosclair. 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 Cyrus
23K
Alive today
Named Trosclair
2.8K
Alive today
US population
343M
Denominator
Estimated living: 23K
Rarity: Uncommon
Gender: Male
Peak year: 2024
Average age: 22
Top Census group: White (54.9%)
Estimated bearers: 2.8K
Rarity: Rare
Census rank: #12,312
Per 100K: 0.81
Top ancestry: White (81.0%)
First name trend
Cyrus: popularity over time
Year-by-year SSA birth registrations for the first name Cyrus. The peak year was 2024 with 1,391 births. The average person named Cyrus today is 22 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Cyrus
Self-reported race and ethnicity breakdown for people with the first name Cyrus, from the 2020 US Census Bureau first-name tables. The largest published group is White at 54.9%.
The bar chart below shows how people with the first name Cyrus 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 Cyrus at the time of the Census. A first name does not determine a person's race or ethnicity.
- White54.9% · 9,881
- Black or African American13.1% · 2,362
- Hispanic or Latino11.8% · 2,127
- Two or more races9.6% · 1,723
- Asian and Pacific Islander8.9% · 1,596
- American Indian and Alaska Native1.7% · 297
Ethnicity
Ancestry of the Trosclair surname
Self-reported race and ethnicity breakdown for people with the surname Trosclair, from the 2020 US Census Bureau. The largest group is White at 81.0%.
The bar chart below shows how people with the surname Trosclair 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 Trosclair at the time of the Census. A surname does not determine a person's race or ethnicity.
- White81.0% · 1,952
- Black or African American7.2% · 174
- American Indian and Alaska Native4.2% · 101
- Hispanic or Latino3.6% · 88
- Two or more races3.6% · 88
- Asian and Pacific Islander0.3% · 8
Methodology
How we calculated this
The first name Cyrus has a living-bearer frequency of 0.0068% of the US population, based on 23,370 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 Cyrus right now.
The surname Trosclair appears at a rate of 0.81 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0008%.
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 Cyrus Trosclair. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Cyrus
FAQ
Cyrus Trosclair: questions and answers
How many people are named Cyrus Trosclair?
We estimate approximately 1 people in the United States share the full name Cyrus Trosclair. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0068%) with the surname frequency (0.81 per 100K) against the current US population.
How rare is the name Cyrus Trosclair?
We classify Cyrus Trosclair as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Cyrus a male or female name?
Cyrus is predominantly male. Out of 27,974 total SSA registrations, 99.8% were male and 0.2% were female. See the full Cyrus 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 many people are called Cyrus Trosclair?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.