How Many People Are Named Dennis Donnelly?
There are approximately 47 people named Dennis Donnelly living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 7,292,645 Americans.
This estimate combines SSA birth records for the first name Dennis with Census Bureau frequency data for the surname Donnelly. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
47
1 in 7,292,645 Americans
Combination Rarity
Rare
First Name
View full profileDennis
Last Name
View full profileDonnelly
Dennis: Popularity Over Time
Year-by-year SSA birth registrations for the first name Dennis. The peak year was 1952 with 24,605 births. The average person named Dennis today is 64 years old.
Ancestry of the Donnelly Surname
Self-reported race and ethnicity breakdown for people with the surname Donnelly, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Dennis" has an estimated frequency of 0.129% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Donnelly" appears at a rate of 10.68 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 47 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Dennis
Other people with the surname Donnelly
Dennis Donnelly: Questions and Answers
How many people are named Dennis Donnelly?
We estimate approximately 47 people named Dennis Donnelly are alive in the United States today. The first name Dennis is shared by 441,864 Americans, and the surname Donnelly is shared by 35,873.
How rare is the name Dennis Donnelly?
This name combination is classified as Rare, occurring at a rate of about 1 in 7,292,645 Americans. The first name Dennis is common and the surname Donnelly is uncommon.
Is Dennis a male or female name?
Dennis is predominantly male, with 99.6% of bearers being male and 0.4% female. It peaked in popularity in 1952 and the average bearer today is 64 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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