Ruth Ducommun
There are approximately 1 people named Ruth Ducommun 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 Ruth with Census Bureau frequency data for the surname Ducommun. 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 Ruth
192K
Alive today
Named Ducommun
398
Alive today
US population
343M
Denominator
Estimated living: 192K
Rarity: Common
Gender: Female
Peak year: 1920
Average age: 62
Top Census group: White (71.1%)
Estimated bearers: 398
Rarity: Very Rare
Census rank: #62,349
Per 100K: 0.12
Top ancestry: White (91.4%)
First name trend
Ruth: popularity over time
Year-by-year SSA birth registrations for the first name Ruth. The peak year was 1920 with 26,156 births. The average person named Ruth today is 62 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Ruth
Self-reported race and ethnicity breakdown for people with the first name Ruth, from the 2020 US Census Bureau first-name tables. The largest published group is White at 71.1%.
The bar chart below shows how people with the first name Ruth 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 Ruth at the time of the Census. A first name does not determine a person's race or ethnicity.
- White71.1% · 203,296
- Hispanic or Latino15.3% · 43,634
- Black or African American9.2% · 26,210
- Asian and Pacific Islander2.3% · 6,634
- Two or more races1.7% · 4,795
- American Indian and Alaska Native0.5% · 1,395
Ethnicity
Ancestry of the Ducommun surname
Self-reported race and ethnicity breakdown for people with the surname Ducommun, from the 2020 US Census Bureau. The largest group is White at 91.4%.
The bar chart below shows how people with the surname Ducommun 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 Ducommun at the time of the Census. A surname does not determine a person's race or ethnicity.
- White91.4% · 317
- Two or more races3.5% · 12
- Hispanic or Latino2.9% · 10
- Black or African American1.4% · 5
- Asian and Pacific Islander0.9% · 3
Methodology
How we calculated this
The first name Ruth has a living-bearer frequency of 0.0559% of the US population, based on 191,718 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 Ruth right now.
The surname Ducommun appears at a rate of 0.12 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0001%.
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 Ruth Ducommun. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Ruth
Related
Other people with the surname Ducommun
FAQ
Ruth Ducommun: questions and answers
How many people are named Ruth Ducommun?
We estimate approximately 1 people in the United States share the full name Ruth Ducommun. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0559%) with the surname frequency (0.12 per 100K) against the current US population.
How rare is the name Ruth Ducommun?
We classify Ruth Ducommun as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Ruth a male or female name?
Ruth is predominantly female. Out of 837,080 total SSA registrations, 0.3% were male and 99.7% were female. See the full Ruth 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 Americans are named Ruth Ducommun?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.