Connor Oneill
There are approximately 38 people named Connor Oneill living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 9,019,851 Americans.
This estimate combines SSA birth records for the first name Connor with Census Bureau frequency data for the surname Oneill. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
38
1 in 9,019,851
Named Connor
231K
Alive today
Named Oneill
57K
Alive today
US population
343M
Denominator
Estimated living: 231K
Rarity: Common
Gender: Male
Peak year: 2004
Average age: 20
Top Census group: White (86.9%)
Estimated bearers: 57K
Rarity: Uncommon
Census rank: #673
Per 100K: 16.52
Top ancestry: White (89.8%)
First name trend
Connor: popularity over time
Year-by-year SSA birth registrations for the first name Connor. The peak year was 2004 with 10,116 births. The average person named Connor today is 20 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Connor
Self-reported race and ethnicity breakdown for people with the first name Connor, from the 2020 US Census Bureau first-name tables. The largest published group is White at 86.9%.
The bar chart below shows how people with the first name Connor 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 Connor at the time of the Census. A first name does not determine a person's race or ethnicity.
- White86.9% · 181,063
- Two or more races4.9% · 10,131
- Hispanic or Latino4.8% · 10,099
- Asian and Pacific Islander1.8% · 3,745
- Black or African American1.2% · 2,444
- American Indian and Alaska Native0.4% · 883
Ethnicity
Ancestry of the Oneill surname
Self-reported race and ethnicity breakdown for people with the surname Oneill, from the 2020 US Census Bureau. The largest group is White at 89.8%.
The bar chart below shows how people with the surname Oneill 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 Oneill at the time of the Census. A surname does not determine a person's race or ethnicity.
- White89.8% · 44,348
- Hispanic or Latino5.2% · 2,568
- Two or more races2.8% · 1,363
- Black or African American1.1% · 520
- Asian and Pacific Islander0.9% · 453
- American Indian and Alaska Native0.2% · 113
Methodology
How we calculated this
The first name Connor has a living-bearer frequency of 0.0673% of the US population, based on 230,651 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 Connor right now.
The surname Oneill appears at a rate of 16.52 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0165%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 38 people with the full name Connor Oneill. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Connor
Related
Other people with the surname Oneill
FAQ
Connor Oneill: questions and answers
How many people are named Connor Oneill?
We estimate approximately 38 people in the United States share the full name Connor Oneill. That works out to about 1 in 9,019,851 Americans. This is calculated by combining the first-name frequency (0.0673%) with the surname frequency (16.52 per 100K) against the current US population.
How rare is the name Connor Oneill?
We classify Connor Oneill as "Very Rare". About 1 in 9,019,851 Americans share this exact first and last name combination.
Is Connor a male or female name?
Connor is predominantly male. Out of 234,024 total SSA registrations, 99.3% were male and 0.7% were female. See the full Connor 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 common is the name Connor Oneill?
Find out how many people are called Connor Oneill on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.