Romolo Guerrieri
There are approximately 1 people named Romolo Guerrieri 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 Romolo with Census Bureau frequency data for the surname Guerrieri. 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 Romolo
46
Alive today
Named Guerrieri
1.8K
Alive today
US population
343M
Denominator
Estimated living: 46
Rarity: Very Rare
Gender: Male
Peak year: 1916
Average age: 63
Top Census group: White (60.0%)
Estimated bearers: 1.8K
Rarity: Rare
Census rank: #17,902
Per 100K: 0.51
Top ancestry: White (93.4%)
First name trend
Romolo: popularity over time
Year-by-year SSA birth registrations for the first name Romolo. The peak year was 1916 with 20 births. The average person named Romolo today is 63 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Romolo
Self-reported race and ethnicity breakdown for people with the first name Romolo, from the 2020 US Census Bureau first-name tables. The largest published group is White at 60.0%.
The bar chart below shows how people with the first name Romolo 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 Romolo at the time of the Census. A first name does not determine a person's race or ethnicity.
- White60.0% · 153
- Hispanic or Latino34.5% · 88
- Asian and Pacific Islander4.3% · 11
- American Indian and Alaska Native0.8% · 2
- Black or African American0.4% · 1
Ethnicity
Ancestry of the Guerrieri surname
Self-reported race and ethnicity breakdown for people with the surname Guerrieri, from the 2020 US Census Bureau. The largest group is White at 93.4%.
The bar chart below shows how people with the surname Guerrieri 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 Guerrieri at the time of the Census. A surname does not determine a person's race or ethnicity.
- White93.4% · 1,438
- Hispanic or Latino3.8% · 58
- Two or more races2.1% · 32
- Black or African American0.5% · 8
- Asian and Pacific Islander0.2% · 3
Methodology
How we calculated this
The first name Romolo has a living-bearer frequency of 0.0000% of the US population, based on 46 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 Romolo right now.
The surname Guerrieri appears at a rate of 0.51 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 Romolo Guerrieri. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Romolo Guerrieri: questions and answers
How many people are named Romolo Guerrieri?
We estimate approximately 1 people in the United States share the full name Romolo Guerrieri. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0000%) with the surname frequency (0.51 per 100K) against the current US population.
How rare is the name Romolo Guerrieri?
We classify Romolo Guerrieri as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Romolo a male or female name?
Romolo is predominantly male. Out of 250 total SSA registrations, 100.0% were male and 0.0% were female. See the full Romolo 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 Romolo Guerrieri?
Find out how common the name Romolo Guerrieri is on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.