How Many People Are Named Zef?
An estimated 43 people in the United States have the first name Zef. It is almost exclusively a male name. The average bearer is 27 years old, and Zef peaked in popularity in 1973 with 6 births that year.
Below you will find a full statistical profile of Zef as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Zef paired with any surname.
Key Insights
- Zef is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
43
About 1 in 7,971,031 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
27
years old
Peak Year
1973
6 births
Total Registered
44
since 1880
Gender Distribution for Zef
Zef is almost exclusively a male name. Out of 44 total births registered, 100.0% were male.
Zef as a male name
Ranked #14,175 in 2023
5 male births in 2023
Peak: 1973 (6 births)
Zef: Popularity Over Time
SSA records for Zef span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2010s, when 12 babies were registered. While Zef is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Zef by Decade
How has Zef tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Zef + Last Name Combinations
How many people share a full name with Zef as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Zef
Other first names starting with Z with a similar number of bearers.
Zef: Questions and Answers
How many people in the U.S. are named Zef?
We estimate approximately 43 people named Zef are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 7,971,031 Americans share this first name.
Is Zef a common name?
Zef is classified as "Very Rare" and is more popular than 52.1% of all first names in the SSA database. A total of 44 births have been registered with this name since 1880.
When was Zef most popular?
Zef reached peak popularity in 1973, when 6 babies were given this name. The average age of a living person named Zef is approximately 27 years old, reflecting when the name was most commonly given.
Is Zef a male name?
Zef is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Zef Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Zef Smith, Zef Johnson, Zef Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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