Ethna Sullivan
There are approximately 1 people named Ethna Sullivan 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 Ethna with Census Bureau frequency data for the surname Sullivan. 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 Ethna
0
Alive today
Named Sullivan
244K
Alive today
US population
343M
Denominator
Estimated living: 0
Rarity: Very Rare
Gender: Female
Peak year: 1921
Average age: 0
Top Census group: White (79.8%)
Estimated bearers: 244K
Rarity: Common
Census rank: #107
Per 100K: 71.16
Top ancestry: White (85.1%)
First name trend
Ethna: popularity over time
Year-by-year SSA birth registrations for the first name Ethna. The peak year was 1921 with 9 births. The average person named Ethna today is 0 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Ethna
Self-reported race and ethnicity breakdown for people with the first name Ethna, from the 2020 US Census Bureau first-name tables. The largest published group is White at 79.8%.
The bar chart below shows how people with the first name Ethna 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 Ethna at the time of the Census. A first name does not determine a person's race or ethnicity.
- White79.8% · 103
- Hispanic or Latino8.5% · 11
- Black or African American7.8% · 10
- Asian and Pacific Islander3.9% · 5
Ethnicity
Ancestry of the Sullivan surname
Self-reported race and ethnicity breakdown for people with the surname Sullivan, from the 2020 US Census Bureau. The largest group is White at 85.1%.
The bar chart below shows how people with the surname Sullivan 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 Sullivan at the time of the Census. A surname does not determine a person's race or ethnicity.
- White85.1% · 181,015
- Black or African American6.9% · 14,770
- Hispanic or Latino3.4% · 7,307
- Two or more races3.3% · 7,020
- Asian and Pacific Islander0.7% · 1,491
- American Indian and Alaska Native0.5% · 1,098
Methodology
How we calculated this
The first name Ethna has a living-bearer frequency of 0.0000% of the US population, based on 0 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 Ethna right now.
The surname Sullivan appears at a rate of 71.16 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0712%.
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 Ethna Sullivan. 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 Sullivan
FAQ
Ethna Sullivan: questions and answers
How many people are named Ethna Sullivan?
We estimate approximately 1 people in the United States share the full name Ethna Sullivan. 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 (71.16 per 100K) against the current US population.
How rare is the name Ethna Sullivan?
We classify Ethna Sullivan as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Ethna a male or female name?
Ethna is predominantly female. Out of 38 total SSA registrations, 0.0% were male and 100.0% were female. See the full Ethna 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 Ethna Sullivan?
For a quick modern take, check how many people are called Ethna Sullivan on our sister site HowManyOfMe.org.