How Many People Are Named Mark Harmon?
There are approximately 290 people named Mark Harmon living in the United States today. That makes this name combination uncommon, occurring at a rate of about 1 in 1,181,912 Americans.
This estimate combines SSA birth records for the first name Mark with Census Bureau frequency data for the surname Harmon. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
290
1 in 1,181,912 Americans
Combination Rarity
Uncommon
First Name
View full profileMark
Last Name
View full profileHarmon
Mark: Popularity Over Time
Year-by-year SSA birth registrations for the first name Mark. The peak year was 1960 with 58,852 births. The average person named Mark today is 56 years old.
Ancestry of the Harmon Surname
Self-reported race and ethnicity breakdown for people with the surname Harmon, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Mark" has an estimated frequency of 0.334% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Harmon" appears at a rate of 25.34 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 290 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Mark
Other people with the surname Harmon
Mark Harmon: Questions and Answers
How many people are named Mark Harmon?
We estimate approximately 290 people named Mark Harmon are alive in the United States today. The first name Mark is shared by 1,144,344 Americans, and the surname Harmon is shared by 85,115.
How rare is the name Mark Harmon?
This name combination is classified as Uncommon, occurring at a rate of about 1 in 1,181,912 Americans. The first name Mark is very common and the surname Harmon is uncommon.
Is Mark a male or female name?
Mark is predominantly male, with 99.7% of bearers being male and 0.3% female. It peaked in popularity in 1960 and the average bearer today is 56 years old.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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