How Many People Are Named Zephaniah Williams?
There are approximately 20 people named Zephaniah Williams living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 17,137,717 Americans.
This estimate combines SSA birth records for the first name Zephaniah with Census Bureau frequency data for the surname Williams. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
20
1 in 17,137,717 Americans
Combination Rarity
Rare
First Name
View full profileZephaniah
Last Name
View full profileWilliams
Zephaniah: Popularity Over Time
Year-by-year SSA birth registrations for the first name Zephaniah. The peak year was 2019 with 193 births. The average person named Zephaniah today is 15 years old.
Ancestry of the Williams Surname
Self-reported race and ethnicity breakdown for people with the surname Williams, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Zephaniah" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Williams" appears at a rate of 550.97 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 20 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people with the surname Williams
Zephaniah Williams: Questions and Answers
How many people are named Zephaniah Williams?
We estimate approximately 20 people named Zephaniah Williams are alive in the United States today. The first name Zephaniah is shared by 3,667 Americans, and the surname Williams is shared by 1,850,671.
How rare is the name Zephaniah Williams?
This name combination is classified as Rare, occurring at a rate of about 1 in 17,137,717 Americans. The first name Zephaniah is rare and the surname Williams is very common.
Is Zephaniah a male or female name?
Zephaniah is predominantly male, with 87.7% of bearers being male and 12.3% female. It peaked in popularity in 2019 and the average bearer today is 15 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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