How Many People Are Named Jeff?
An estimated 95,388 people in the United States have the first name Jeff. It is almost exclusively a male name. The average bearer is 61 years old, and Jeff peaked in popularity in 1961 with 9,473 births that year.
Below you will find a full statistical profile of Jeff 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 Jeff paired with any surname.
Key Insights
- While Jeff is overwhelmingly male, 263 female births have been registered with this name since 1880.
- Jeff has fallen dramatically from its peak in the 1960s. Recent registrations are less than 5% of what they were at the name's height.
Estimated Living Americans
95,388
About 1 in 3,593 people in the U.S.
Rarity
Uncommon
Predicted Gender
Male
99.8% confidence
Average Age
61
years old
Peak Year
1961
9,473 births
Total Registered
120,475
since 1880
Gender Distribution for Jeff
Jeff is almost exclusively a male name. Out of 120,475 total births registered, 99.8% were male.
Jeff as a male name
Ranked #2,920 in 2024
43 male births in 2024
Peak: 1961 (9,462 births)
Jeff as a female name
Ranked #12,592 in 1988
5 female births in 1988
Peak: 1960 (20 births)
Jeff: Popularity Over Time
SSA records for Jeff span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1960s, when 62,224 babies were registered. Jeff has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Jeff by Decade
How has Jeff 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 | 685 | 685 | 0 | |
| 1890s | 661 | 661 | 0 | |
| 1900s | 605 | 605 | 0 | |
| 1910s | 1,532 | 1,532 | 0 | |
| 1920s | 1,871 | 1,861 | 10 | |
| 1930s | 1,527 | 1,522 | 5 | |
| 1940s | 5,909 | 5,909 | 0 | |
| 1950s | 24,960 | 24,921 | 39 | |
| 1960s | 62,224 | 62,077 | 147 | |
| 1970s | 12,288 | 12,253 | 35 | |
| 1980s | 3,813 | 3,786 | 27 | |
| 1990s | 1,890 | 1,890 | 0 | |
| 2000s | 1,518 | 1,518 | 0 | |
| 2010s | 769 | 769 | 0 | |
| 2020s | 223 | 223 | 0 | |
Jeff by State
Birth registrations for Jeff span all 51 states and territories in the SSA database. The highest counts are in California, Ohio, Illinois. The lowest are in Vermont, Alaska, Rhode Island. On average, about 2,247 Jeffs were registered per state.
Jeff + Last Name Combinations
How many people share a full name with Jeff as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Jeff
Other first names starting with J with a similar number of bearers.
Jeff: Questions and Answers
How many people in the U.S. are named Jeff?
We estimate approximately 95,388 people named Jeff 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 3,593 Americans share this first name.
Is Jeff a common name?
Jeff is classified as "Uncommon" and is more popular than 99.5% of all first names in the SSA database. A total of 120,475 births have been registered with this name since 1880.
When was Jeff most popular?
Jeff reached peak popularity in 1961, when 9,473 babies were given this name. The average age of a living person named Jeff is approximately 61 years old, reflecting when the name was most commonly given.
Is Jeff a male name?
Jeff is predominantly male. 99.8% of people with this name are male. See the gender breakdown above for full details.
How many Jeff Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Jeff Smith, Jeff Johnson, Jeff 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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