How Many People Are Named Jefferson?
An estimated 18,500 people in the United States have the first name Jefferson. It is almost exclusively a male name. The average bearer is 34 years old, and Jefferson peaked in popularity in 2009 with 444 births that year.
Below you will find a full statistical profile of Jefferson 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 Jefferson paired with any surname.
Estimated Living Americans
18,500
About 1 in 18,527 people in the U.S.
Rarity
Uncommon
Predicted Gender
Male
100.0% confidence
Average Age
34
years old
Peak Year
2009
444 births
Total Registered
24,141
since 1880
Gender Distribution for Jefferson
Jefferson is almost exclusively a male name. Out of 24,141 total births registered, 100.0% were male.
Jefferson as a male name
Ranked #711 in 2024
374 male births in 2024
Peak: 2009 (444 births)
Jefferson: Popularity Over Time
SSA records for Jefferson span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 2010s, when 3,789 babies were registered. While Jefferson is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Jefferson by Decade
How has Jefferson 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.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1880s | 355 | 355 | 0 | |
| 1890s | 291 | 291 | 0 | |
| 1900s | 244 | 244 | 0 | |
| 1910s | 1,039 | 1,039 | 0 | |
| 1920s | 1,429 | 1,429 | 0 | |
| 1930s | 908 | 908 | 0 | |
| 1940s | 1,142 | 1,142 | 0 | |
| 1950s | 1,738 | 1,738 | 0 | |
| 1960s | 2,017 | 2,017 | 0 | |
| 1970s | 2,165 | 2,165 | 0 | |
| 1980s | 1,638 | 1,638 | 0 | |
| 1990s | 2,359 | 2,359 | 0 | |
| 2000s | 3,268 | 3,268 | 0 | |
| 2010s | 3,789 | 3,789 | 0 | |
| 2020s | 1,759 | 1,759 | 0 | |
Jefferson by State
Birth registrations for Jefferson span all 42 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in New Mexico, New Hampshire, Delaware. On average, about 421 Jeffersons were registered per state.
Jefferson + Last Name Combinations
How many people share a full name with Jefferson as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Jefferson
Other first names starting with J with a similar number of bearers.
Jefferson: Questions and Answers
How many people in the U.S. are named Jefferson?
We estimate approximately 18,500 people named Jefferson 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 18,527 Americans share this first name.
Is Jefferson a common name?
Jefferson is classified as "Uncommon" and is more popular than 98.4% of all first names in the SSA database. A total of 24,141 births have been registered with this name since 1880.
When was Jefferson most popular?
Jefferson reached peak popularity in 2009, when 444 babies were given this name. The average age of a living person named Jefferson is approximately 34 years old, reflecting when the name was most commonly given.
Is Jefferson a male name?
Jefferson is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Jefferson Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Jefferson Smith, Jefferson Johnson, Jefferson 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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