How Many People Are Named David Trefz?
There are approximately 5 people named David Trefz living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 68,550,868 Americans.
This estimate combines SSA birth records for the first name David with Census Bureau frequency data for the surname Trefz. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
5
1 in 68,550,868 Americans
Combination Rarity
Very Rare
First Name
View full profileDavid
Last Name
View full profileTrefz
David: Popularity Over Time
Year-by-year SSA birth registrations for the first name David. The peak year was 1955 with 86,450 births. The average person named David today is 54 years old.
Ancestry of the Trefz Surname
Self-reported race and ethnicity breakdown for people with the surname Trefz, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "David" has an estimated frequency of 0.831% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Trefz" appears at a rate of 0.18 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 5 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named David
Other people with the surname Trefz
David Trefz: Questions and Answers
How many people are named David Trefz?
We estimate approximately 5 people named David Trefz are alive in the United States today. The first name David is shared by 2,847,418 Americans, and the surname Trefz is shared by 617.
How rare is the name David Trefz?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 68,550,868 Americans. The first name David is very common and the surname Trefz is very rare.
Is David a male or female name?
David is predominantly male, with 99.6% of bearers being male and 0.4% female. It peaked in popularity in 1955 and the average bearer today is 54 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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