How Many People Are Named Jeferson?
An estimated 409 people in the United States have the first name Jeferson. It is almost exclusively a male name. The average bearer is 15 years old, and Jeferson peaked in popularity in 2008 with 41 births that year.
Below you will find a full statistical profile of Jeferson 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 Jeferson paired with any surname.
Estimated Living Americans
409
About 1 in 838,030 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
15
years old
Peak Year
2008
41 births
Total Registered
413
since 1880
Gender Distribution for Jeferson
Jeferson is almost exclusively a male name. Out of 413 total births registered, 100.0% were male.
Jeferson as a male name
Ranked #5,524 in 2024
17 male births in 2024
Peak: 2008 (41 births)
Jeferson: Popularity Over Time
SSA records for Jeferson span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 184 babies were registered. While Jeferson is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Jeferson by Decade
How has Jeferson 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.
Jeferson by State
Birth registrations for Jeferson span all 5 states and territories in the SSA database. The highest counts are in Virginia, New York, Maryland. The lowest are in New Jersey, California, Maryland. On average, about 8 Jefersons were registered per state.
Jeferson + Last Name Combinations
How many people share a full name with Jeferson as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Jeferson
Other first names starting with J with a similar number of bearers.
Jeferson: Questions and Answers
How many people in the U.S. are named Jeferson?
We estimate approximately 409 people named Jeferson 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 838,030 Americans share this first name.
Is Jeferson a common name?
Jeferson is classified as "Very Rare" and is more popular than 82.5% of all first names in the SSA database. A total of 413 births have been registered with this name since 1880.
When was Jeferson most popular?
Jeferson reached peak popularity in 2008, when 41 babies were given this name. The average age of a living person named Jeferson is approximately 15 years old, reflecting when the name was most commonly given.
Is Jeferson a male name?
Jeferson is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Jeferson Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Jeferson Smith, Jeferson Johnson, Jeferson 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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