Isaac Newton
There are approximately 75 people named Isaac Newton living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 4,570,058 Americans.
This estimate combines SSA birth records for the first name Isaac with Census Bureau frequency data for the surname Newton. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
75
1 in 4,570,058
Named Isaac
297K
Alive today
Named Newton
86K
Alive today
US population
343M
Denominator
Estimated living: 297K
Rarity: Common
Gender: Male
Peak year: 2007
Average age: 22
Estimated bearers: 86K
Rarity: Uncommon
Census rank: #443
Per 100K: 25.12
Top ancestry: White (75.7%)
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
Ethnicity
Ancestry of the Newton surname
Self-reported race and ethnicity breakdown for people with the surname Newton, from the 2010 US Census Bureau. The largest group is White at 75.7%.
- White75.7%
- Black or African American18.4%
- Hispanic or Latino2.6%
- Two or more races2.0%
- American Indian and Alaska Native0.7%
- Asian and Pacific Islander0.6%
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).
The surname Newton appears at a rate of 25.12 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0251%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 75 people with the full name Isaac Newton. 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 Newton
FAQ
Isaac Newton: questions and answers
How many people are named Isaac Newton?
We estimate approximately 75 people in the United States share the full name Isaac Newton. That works out to about 1 in 4,570,058 Americans. This is calculated by combining the first-name frequency (0.0865%) with the surname frequency (25.12 per 100K) against the current US population.
How rare is the name Isaac Newton?
We classify Isaac Newton as "Very Rare". About 1 in 4,570,058 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 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.