Lewis Allen
There are approximately 112 people named Lewis Allen living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 3,060,307 Americans.
This estimate combines SSA birth records for the first name Lewis with Census Bureau frequency data for the surname Allen. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
112
1 in 3,060,307
Named Lewis
68K
Alive today
Named Allen
561K
Alive today
US population
343M
Denominator
Estimated living: 68K
Rarity: Uncommon
Gender: Male
Peak year: 1921
Average age: 57
Estimated bearers: 561K
Rarity: Very Common
Census rank: #33
Per 100K: 163.61
Top ancestry: White (67.6%)
First name trend
Lewis: popularity over time
Year-by-year SSA birth registrations for the first name Lewis. The peak year was 1921 with 2,731 births. The average person named Lewis today is 57 years old.
Babies born per year
Ethnicity
Ancestry of the Allen surname
Self-reported race and ethnicity breakdown for people with the surname Allen, from the 2010 US Census Bureau. The largest group is White at 67.6%.
- White67.6%
- Black or African American26.2%
- Hispanic or Latino2.5%
- Two or more races2.4%
- American Indian and Alaska Native0.9%
- Asian and Pacific Islander0.5%
Methodology
How we calculated this
The first name Lewis has a living-bearer frequency of 0.0199% of the US population, based on 68,216 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Allen appears at a rate of 163.61 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.1636%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 112 people with the full name Lewis Allen. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Lewis
Related
Other people with the surname Allen
FAQ
Lewis Allen: questions and answers
How many people are named Lewis Allen?
We estimate approximately 112 people in the United States share the full name Lewis Allen. That works out to about 1 in 3,060,307 Americans. This is calculated by combining the first-name frequency (0.0199%) with the surname frequency (163.61 per 100K) against the current US population.
How rare is the name Lewis Allen?
We classify Lewis Allen as "Very Rare". About 1 in 3,060,307 Americans share this exact first and last name combination.
Is Lewis a male or female name?
Lewis is predominantly male. Out of 155,889 total SSA registrations, 99.4% were male and 0.6% were female. See the full Lewis 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 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.