How Many People Are Named Patrick Duffy?
There are approximately 75 people named Patrick Duffy living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 4,570,058 Americans.
This estimate combines SSA birth records for the first name Patrick with Census Bureau frequency data for the surname Duffy. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
75
1 in 4,570,058 Americans
Combination Rarity
Rare
First Name
View full profilePatrick
Last Name
View full profileDuffy
Patrick: Popularity Over Time
Year-by-year SSA birth registrations for the first name Patrick. The peak year was 1964 with 14,752 births. The average person named Patrick today is 48 years old.
Ancestry of the Duffy Surname
Self-reported race and ethnicity breakdown for people with the surname Duffy, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Patrick" has an estimated frequency of 0.167% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Duffy" appears at a rate of 13.17 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 75 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Patrick
Other people with the surname Duffy
Patrick Duffy: Questions and Answers
How many people are named Patrick Duffy?
We estimate approximately 75 people named Patrick Duffy are alive in the United States today. The first name Patrick is shared by 571,090 Americans, and the surname Duffy is shared by 44,237.
How rare is the name Patrick Duffy?
This name combination is classified as Rare, occurring at a rate of about 1 in 4,570,058 Americans. The first name Patrick is very common and the surname Duffy is uncommon.
Is Patrick a male or female name?
Patrick is predominantly male, with 99.6% of bearers being male and 0.4% female. It peaked in popularity in 1964 and the average bearer today is 48 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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