James Macarthur
There are approximately 43 people named James Macarthur living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 7,971,031 Americans.
This estimate combines SSA birth records for the first name James with Census Bureau frequency data for the surname Macarthur. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
43
1 in 7,971,031
Named James
3.1M
Alive today
Named Macarthur
4.7K
Alive today
US population
343M
Denominator
Estimated living: 3.1M
Rarity: Very Common
Gender: Male
Peak year: 1947
Average age: 57
Estimated bearers: 4.7K
Rarity: Rare
Census rank: #8,274
Per 100K: 1.36
Top ancestry: White (90.5%)
First name trend
James: popularity over time
Year-by-year SSA birth registrations for the first name James. The peak year was 1947 with 95,020 births. The average person named James today is 57 years old.
Babies born per year
Ethnicity
Ancestry of the Macarthur surname
Self-reported race and ethnicity breakdown for people with the surname Macarthur, from the 2010 US Census Bureau. The largest group is White at 90.5%.
- White90.5%
- Black or African American3.2%
- Hispanic or Latino2.6%
- Two or more races1.9%
- American Indian and Alaska Native1.1%
- Asian and Pacific Islander0.8%
Methodology
How we calculated this
The first name James has a living-bearer frequency of 0.9168% of the US population, based on 3,142,267 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Macarthur appears at a rate of 1.36 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0014%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 43 people with the full name James Macarthur. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named James
FAQ
James Macarthur: questions and answers
How many people are named James Macarthur?
We estimate approximately 43 people in the United States share the full name James Macarthur. That works out to about 1 in 7,971,031 Americans. This is calculated by combining the first-name frequency (0.9168%) with the surname frequency (1.36 per 100K) against the current US population.
How rare is the name James Macarthur?
We classify James Macarthur as "Very Rare". About 1 in 7,971,031 Americans share this exact first and last name combination.
Is James a male or female name?
James is predominantly male. Out of 5,262,396 total SSA registrations, 99.5% were male and 0.5% were female. See the full James 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.