Cosimo Errico
There are approximately 1 people named Cosimo Errico 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 Cosimo with Census Bureau frequency data for the surname Errico. 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 Cosimo
515
Alive today
Named Errico
1.7K
Alive today
US population
343M
Denominator
Estimated living: 515
Rarity: Very Rare
Gender: Male
Peak year: 1927
Average age: 40
Top Census group: White (92.1%)
Estimated bearers: 1.7K
Rarity: Rare
Census rank: #18,852
Per 100K: 0.48
Top ancestry: White (93.8%)
First name trend
Cosimo: popularity over time
Year-by-year SSA birth registrations for the first name Cosimo. The peak year was 1927 with 30 births. The average person named Cosimo today is 40 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Cosimo
Self-reported race and ethnicity breakdown for people with the first name Cosimo, from the 2020 US Census Bureau first-name tables. The largest published group is White at 92.1%.
The bar chart below shows how people with the first name Cosimo 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 Cosimo at the time of the Census. A first name does not determine a person's race or ethnicity.
- White92.1% · 713
- Hispanic or Latino4.4% · 34
- Two or more races3.1% · 24
- Asian and Pacific Islander0.3% · 2
- Black or African American0.1% · 1
Ethnicity
Ancestry of the Errico surname
Self-reported race and ethnicity breakdown for people with the surname Errico, from the 2020 US Census Bureau. The largest group is White at 93.8%.
The bar chart below shows how people with the surname Errico 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 Errico at the time of the Census. A surname does not determine a person's race or ethnicity.
- White93.8% · 1,354
- Hispanic or Latino3.6% · 52
- Two or more races1.2% · 18
- Asian and Pacific Islander0.9% · 13
- Black or African American0.3% · 5
- American Indian and Alaska Native0.1% · 1
Methodology
How we calculated this
The first name Cosimo has a living-bearer frequency of 0.0002% of the US population, based on 515 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 Cosimo right now.
The surname Errico appears at a rate of 0.48 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0005%.
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 Cosimo Errico. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people with the surname Errico
FAQ
Cosimo Errico: questions and answers
How many people are named Cosimo Errico?
We estimate approximately 1 people in the United States share the full name Cosimo Errico. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0002%) with the surname frequency (0.48 per 100K) against the current US population.
How rare is the name Cosimo Errico?
We classify Cosimo Errico as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Cosimo a male or female name?
Cosimo is predominantly male. Out of 1,000 total SSA registrations, 100.0% were male and 0.0% were female. See the full Cosimo 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 have the full name Cosimo Errico?
Find out how common the name Cosimo Errico is on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.