Rosa Delauro
There are approximately 1 people named Rosa Delauro 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 Rosa with Census Bureau frequency data for the surname Delauro. 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 Rosa
84K
Alive today
Named Delauro
414
Alive today
US population
343M
Denominator
Estimated living: 84K
Rarity: Uncommon
Gender: Female
Peak year: 1925
Average age: 51
Top Census group: Hispanic or Latino (84.3%)
Estimated bearers: 414
Rarity: Very Rare
Census rank: #60,295
Per 100K: 0.12
Top ancestry: White (89.2%)
First name trend
Rosa: popularity over time
Year-by-year SSA birth registrations for the first name Rosa. The peak year was 1925 with 2,245 births. The average person named Rosa today is 51 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Rosa
Self-reported race and ethnicity breakdown for people with the first name Rosa, from the 2020 US Census Bureau first-name tables. The largest published group is Hispanic or Latino at 84.3%.
The bar chart below shows how people with the first name Rosa 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 Rosa at the time of the Census. A first name does not determine a person's race or ethnicity.
- Hispanic or Latino84.3% · 214,351
- White8.2% · 20,867
- Black or African American5.7% · 14,457
- Asian and Pacific Islander1.2% · 3,026
- Two or more races0.4% · 1,135
- American Indian and Alaska Native0.2% · 448
Ethnicity
Ancestry of the Delauro surname
Self-reported race and ethnicity breakdown for people with the surname Delauro, from the 2020 US Census Bureau. The largest group is White at 89.2%.
The bar chart below shows how people with the surname Delauro 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 Delauro at the time of the Census. A surname does not determine a person's race or ethnicity.
- White89.2% · 322
- Hispanic or Latino6.4% · 23
- Asian and Pacific Islander1.9% · 7
- Two or more races1.9% · 7
- Black or African American0.6% · 2
Methodology
How we calculated this
The first name Rosa has a living-bearer frequency of 0.0247% of the US population, based on 84,496 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 Rosa right now.
The surname Delauro 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 Rosa Delauro. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Rosa
FAQ
Rosa Delauro: questions and answers
How many people are named Rosa Delauro?
We estimate approximately 1 people in the United States share the full name Rosa Delauro. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0247%) with the surname frequency (0.12 per 100K) against the current US population.
How rare is the name Rosa Delauro?
We classify Rosa Delauro as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Rosa a male or female name?
Rosa is predominantly female. Out of 178,136 total SSA registrations, 0.7% were male and 99.3% were female. See the full Rosa 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 Rosa Delauro?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.