Kenneth Lonergan
There are approximately 10 people named Kenneth Lonergan living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 34,275,434 Americans.
This estimate combines SSA birth records for the first name Kenneth with Census Bureau frequency data for the surname Lonergan. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
10
1 in 34,275,434
Named Kenneth
837K
Alive today
Named Lonergan
4.1K
Alive today
US population
343M
Denominator
Estimated living: 837K
Rarity: Very Common
Gender: Male
Peak year: 1957
Average age: 59
Top Census group: White (77.5%)
Estimated bearers: 4.1K
Rarity: Rare
Census rank: #8,875
Per 100K: 1.19
Top ancestry: White (91.7%)
First name trend
Kenneth: popularity over time
Year-by-year SSA birth registrations for the first name Kenneth. The peak year was 1957 with 28,141 births. The average person named Kenneth today is 59 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Kenneth
Self-reported race and ethnicity breakdown for people with the first name Kenneth, from the 2020 US Census Bureau first-name tables. The largest published group is White at 77.5%.
The bar chart below shows how people with the first name Kenneth 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 Kenneth at the time of the Census. A first name does not determine a person's race or ethnicity.
- White77.5% · 585,511
- Black or African American13.3% · 100,649
- Hispanic or Latino3.7% · 28,208
- Two or more races2.7% · 20,280
- Asian and Pacific Islander2.1% · 15,905
- American Indian and Alaska Native0.7% · 5,123
Ethnicity
Ancestry of the Lonergan surname
Self-reported race and ethnicity breakdown for people with the surname Lonergan, from the 2020 US Census Bureau. The largest group is White at 91.7%.
The bar chart below shows how people with the surname Lonergan 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 Lonergan at the time of the Census. A surname does not determine a person's race or ethnicity.
- White91.7% · 3,248
- Hispanic or Latino3.7% · 131
- Two or more races2.6% · 91
- Black or African American1.2% · 42
- Asian and Pacific Islander0.7% · 25
- American Indian and Alaska Native0.1% · 5
Methodology
How we calculated this
The first name Kenneth has a living-bearer frequency of 0.2442% of the US population, based on 836,956 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 Kenneth right now.
The surname Lonergan appears at a rate of 1.19 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0012%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 10 people with the full name Kenneth Lonergan. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Kenneth
FAQ
Kenneth Lonergan: questions and answers
How many people are named Kenneth Lonergan?
We estimate approximately 10 people in the United States share the full name Kenneth Lonergan. That works out to about 1 in 34,275,434 Americans. This is calculated by combining the first-name frequency (0.2442%) with the surname frequency (1.19 per 100K) against the current US population.
How rare is the name Kenneth Lonergan?
We classify Kenneth Lonergan as "Very Rare". About 1 in 34,275,434 Americans share this exact first and last name combination.
Is Kenneth a male or female name?
Kenneth is predominantly male. Out of 1,288,147 total SSA registrations, 99.6% were male and 0.4% were female. See the full Kenneth 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 Kenneth Lonergan?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.