Billy Mills
There are approximately 104 people named Billy Mills living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 3,295,715 Americans.
This estimate combines SSA birth records for the first name Billy with Census Bureau frequency data for the surname Mills. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
104
1 in 3,295,715
Named Billy
214K
Alive today
Named Mills
167K
Alive today
US population
343M
Denominator
Estimated living: 214K
Rarity: Common
Gender: Male
Peak year: 1934
Average age: 63
Top Census group: White (77.2%)
Estimated bearers: 167K
Rarity: Common
Census rank: #187
Per 100K: 48.66
Top ancestry: White (74.6%)
First name trend
Billy: popularity over time
Year-by-year SSA birth registrations for the first name Billy. The peak year was 1934 with 9,659 births. The average person named Billy today is 63 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Billy
Self-reported race and ethnicity breakdown for people with the first name Billy, from the 2020 US Census Bureau first-name tables. The largest published group is White at 77.2%.
The bar chart below shows how people with the first name Billy 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 Billy at the time of the Census. A first name does not determine a person's race or ethnicity.
- White77.2% · 133,810
- Black or African American11.9% · 20,605
- Hispanic or Latino4.1% · 7,065
- Two or more races3.2% · 5,467
- Asian and Pacific Islander2.3% · 3,933
- American Indian and Alaska Native1.5% · 2,556
Ethnicity
Ancestry of the Mills surname
Self-reported race and ethnicity breakdown for people with the surname Mills, from the 2020 US Census Bureau. The largest group is White at 74.6%.
The bar chart below shows how people with the surname Mills 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 Mills at the time of the Census. A surname does not determine a person's race or ethnicity.
- White74.6% · 108,457
- Black or African American16.5% · 23,949
- Two or more races4.2% · 6,149
- Hispanic or Latino3.3% · 4,797
- American Indian and Alaska Native0.8% · 1,165
- Asian and Pacific Islander0.6% · 931
Methodology
How we calculated this
The first name Billy has a living-bearer frequency of 0.0623% of the US population, based on 213,640 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 Billy right now.
The surname Mills appears at a rate of 48.66 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0487%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 104 people with the full name Billy Mills. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Billy
Related
Other people with the surname Mills
FAQ
Billy Mills: questions and answers
How many people are named Billy Mills?
We estimate approximately 104 people in the United States share the full name Billy Mills. That works out to about 1 in 3,295,715 Americans. This is calculated by combining the first-name frequency (0.0623%) with the surname frequency (48.66 per 100K) against the current US population.
How rare is the name Billy Mills?
We classify Billy Mills as "Very Rare". About 1 in 3,295,715 Americans share this exact first and last name combination.
Is Billy a male or female name?
Billy is predominantly male. Out of 389,442 total SSA registrations, 98.6% were male and 1.4% were female. See the full Billy 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 Billy Mills?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.