Jeff Fatt
There are approximately 1 people named Jeff Fatt living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Jeff with Census Bureau frequency data for the surname Fatt. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Jeff
95K
Alive today
Named Fatt
171
Alive today
US population
343M
Denominator
Estimated living: 95K
Rarity: Uncommon
Gender: Male
Peak year: 1961
Average age: 61
Estimated bearers: 171
Rarity: Very Rare
Census rank: #110,825
Per 100K: 0.05
Top ancestry: American Indian/Alaska Native (49.7%)
First name trend
Jeff: popularity over time
Year-by-year SSA birth registrations for the first name Jeff. The peak year was 1961 with 9,473 births. The average person named Jeff today is 61 years old.
Babies born per year
Ethnicity
Ancestry of the Fatt surname
Self-reported race and ethnicity breakdown for people with the surname Fatt, from the 2010 US Census Bureau. The largest group is American Indian/Alaska Native at 49.7%.
- American Indian and Alaska Native49.7%
- White30.8%
- Asian and Pacific Islander9.4%
- Two or more races6.9%
- Unknown or suppressed3.1%
Methodology
How we calculated this
The first name Jeff has a living-bearer frequency of 0.0278% of the US population, based on 95,388 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Fatt appears at a rate of 0.05 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0000%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Jeff Fatt. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Jeff
FAQ
Jeff Fatt: questions and answers
How many people are named Jeff Fatt?
We estimate approximately 1 people in the United States share the full name Jeff Fatt. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0278%) with the surname frequency (0.05 per 100K) against the current US population.
How rare is the name Jeff Fatt?
We classify Jeff Fatt as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Jeff a male or female name?
Jeff is predominantly male. Out of 120,475 total SSA registrations, 99.8% were male and 0.2% were female. See the full Jeff profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.