How Many People Are Named Zephaniah?
An estimated 3,667 people in the United States have the first name Zephaniah. It is used for both genders, with 87.7% male. The average bearer is 15 years old, and Zephaniah peaked in popularity in 2019 with 193 births that year.
Below you will find a full statistical profile of Zephaniah 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 Zephaniah paired with any surname.
Key Insights
- Zephaniah is a modern name. With an average bearer age of just 15, it has gained most of its popularity in recent years.
Estimated Living Americans
3,667
About 1 in 93,470 people in the U.S.
Rarity
Rare
Predicted Gender
Male
87.7% confidence
Average Age
15
years old
Peak Year
2019
193 births
Total Registered
3,710
since 1880
Gender Distribution for Zephaniah
Zephaniah is predominantly male (87.7%), though 456 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Zephaniah as a male name
Ranked #1,339 in 2024
143 male births in 2024
Peak: 2019 (170 births)
Zephaniah as a female name
Ranked #7,933 in 2024
14 female births in 2024
Peak: 2016 (28 births)
Zephaniah: Popularity Over Time
SSA records for Zephaniah span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2010s, when 1,529 babies were registered. While Zephaniah is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Zephaniah by Decade
How has Zephaniah 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.
Zephaniah by State
Birth registrations for Zephaniah span all 26 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in South Carolina, Oregon, Oklahoma. On average, about 57 Zephaniahs were registered per state.
Zephaniah + Last Name Combinations
How many people share a full name with Zephaniah as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Zephaniah
Other first names starting with Z with a similar number of bearers.
Zephaniah: Questions and Answers
How many people in the U.S. are named Zephaniah?
We estimate approximately 3,667 people named Zephaniah 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 93,470 Americans share this first name.
Is Zephaniah a common name?
Zephaniah is classified as "Rare" and is more popular than 95.8% of all first names in the SSA database. A total of 3,710 births have been registered with this name since 1880.
When was Zephaniah most popular?
Zephaniah reached peak popularity in 2019, when 193 babies were given this name. The average age of a living person named Zephaniah is approximately 15 years old, reflecting when the name was most commonly given.
Is Zephaniah a male name?
Zephaniah is predominantly male. 87.7% of people with this name are male. See the gender breakdown above for full details.
How many Zephaniah Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Zephaniah Smith, Zephaniah Johnson, Zephaniah 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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