Isaac Mills
There are approximately 144 people named Isaac Mills living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 2,380,238 Americans.
This estimate combines SSA birth records for the first name Isaac 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
144
1 in 2,380,238
Named Isaac
297K
Alive today
Named Mills
167K
Alive today
US population
343M
Denominator
Estimated living: 297K
Rarity: Common
Gender: Male
Peak year: 2007
Average age: 22
Top Census group: White (44.7%)
Estimated bearers: 167K
Rarity: Common
Census rank: #187
Per 100K: 48.66
Top ancestry: White (74.6%)
First name trend
Isaac: popularity over time
Year-by-year SSA birth registrations for the first name Isaac. The peak year was 2007 with 10,287 births. The average person named Isaac today is 22 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Isaac
Self-reported race and ethnicity breakdown for people with the first name Isaac, from the 2020 US Census Bureau first-name tables. The largest published group is White at 44.7%.
The bar chart below shows how people with the first name Isaac 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 Isaac at the time of the Census. A first name does not determine a person's race or ethnicity.
- White44.7% · 108,295
- Hispanic or Latino36.6% · 88,615
- Black or African American9.8% · 23,753
- Two or more races4.8% · 11,644
- Asian and Pacific Islander3.4% · 8,135
- American Indian and Alaska Native0.7% · 1,774
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 Isaac has a living-bearer frequency of 0.0865% of the US population, based on 296,602 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 Isaac 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 144 people with the full name Isaac 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 Isaac
Related
Other people with the surname Mills
FAQ
Isaac Mills: questions and answers
How many people are named Isaac Mills?
We estimate approximately 144 people in the United States share the full name Isaac Mills. That works out to about 1 in 2,380,238 Americans. This is calculated by combining the first-name frequency (0.0865%) with the surname frequency (48.66 per 100K) against the current US population.
How rare is the name Isaac Mills?
We classify Isaac Mills as "Very Rare". About 1 in 2,380,238 Americans share this exact first and last name combination.
Is Isaac a male or female name?
Isaac is predominantly male. Out of 326,231 total SSA registrations, 99.8% were male and 0.2% were female. See the full Isaac 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 Isaac Mills?
Our sister site HowManyOfMe.org answers how common the name Isaac Mills is at a glance, with the living-bearer count up front.