Leonard Boswell
There are approximately 9 people named Leonard Boswell living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 38,083,815 Americans.
This estimate combines SSA birth records for the first name Leonard with Census Bureau frequency data for the surname Boswell. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
9
1 in 38,083,815
Named Leonard
131K
Alive today
Named Boswell
24K
Alive today
US population
343M
Denominator
Estimated living: 131K
Rarity: Common
Gender: Male
Peak year: 1921
Average age: 63
Top Census group: White (68.8%)
Estimated bearers: 24K
Rarity: Uncommon
Census rank: #1,635
Per 100K: 7.14
Top ancestry: White (74.3%)
First name trend
Leonard: popularity over time
Year-by-year SSA birth registrations for the first name Leonard. The peak year was 1921 with 5,675 births. The average person named Leonard today is 63 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Leonard
Self-reported race and ethnicity breakdown for people with the first name Leonard, from the 2020 US Census Bureau first-name tables. The largest published group is White at 68.8%.
The bar chart below shows how people with the first name Leonard 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 Leonard at the time of the Census. A first name does not determine a person's race or ethnicity.
- White68.8% · 85,998
- Black or African American18.9% · 23,603
- Hispanic or Latino6.6% · 8,261
- Two or more races2.4% · 3,033
- Asian and Pacific Islander2.0% · 2,470
- American Indian and Alaska Native1.3% · 1,606
Ethnicity
Ancestry of the Boswell surname
Self-reported race and ethnicity breakdown for people with the surname Boswell, from the 2020 US Census Bureau. The largest group is White at 74.3%.
The bar chart below shows how people with the surname Boswell 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 Boswell at the time of the Census. A surname does not determine a person's race or ethnicity.
- White74.3% · 15,859
- Black or African American15.4% · 3,290
- Two or more races4.9% · 1,040
- Hispanic or Latino3.5% · 742
- American Indian and Alaska Native1.3% · 269
- Asian and Pacific Islander0.6% · 136
Methodology
How we calculated this
The first name Leonard has a living-bearer frequency of 0.0384% of the US population, based on 131,475 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 Leonard right now.
The surname Boswell appears at a rate of 7.14 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0071%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 9 people with the full name Leonard Boswell. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Leonard
FAQ
Leonard Boswell: questions and answers
How many people are named Leonard Boswell?
We estimate approximately 9 people in the United States share the full name Leonard Boswell. That works out to about 1 in 38,083,815 Americans. This is calculated by combining the first-name frequency (0.0384%) with the surname frequency (7.14 per 100K) against the current US population.
How rare is the name Leonard Boswell?
We classify Leonard Boswell as "Very Rare". About 1 in 38,083,815 Americans share this exact first and last name combination.
Is Leonard a male or female name?
Leonard is predominantly male. Out of 295,296 total SSA registrations, 99.5% were male and 0.5% were female. See the full Leonard 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 are called Leonard Boswell?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.