How Many People Are Named Kenji?
An estimated 4,922 people in the United States have the first name Kenji. It is predominantly male (99.4%). The average bearer is 20 years old, and Kenji peaked in popularity in 2022 with 336 births that year.
Below you will find a full statistical profile of Kenji 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 Kenji paired with any surname.
Estimated Living Americans
4,922
About 1 in 69,637 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.4% confidence
Average Age
20
years old
Peak Year
2022
336 births
Total Registered
5,406
since 1880
Gender Distribution for Kenji
Kenji is almost exclusively a male name. Out of 5,406 total births registered, 99.4% were male.
Kenji as a male name
Ranked #855 in 2024
283 male births in 2024
Peak: 2022 (336 births)
Kenji as a female name
Ranked #14,485 in 2009
7 female births in 2009
Peak: 1980 (8 births)
Kenji: Popularity Over Time
SSA records for Kenji span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 2020s, when 1,441 babies were registered. Kenji remains highly popular today, with recent registration numbers near its historical peak.
Kenji by Decade
How has Kenji 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.
Kenji by State
Birth registrations for Kenji span all 29 states and territories in the SSA database. The highest counts are in California, New York, Texas. The lowest are in Connecticut, Utah, Colorado. On average, about 116 Kenjis were registered per state.
Kenji + Last Name Combinations
How many people share a full name with Kenji as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kenji
Other first names starting with K with a similar number of bearers.
Kenji: Questions and Answers
How many people in the U.S. are named Kenji?
We estimate approximately 4,922 people named Kenji 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 69,637 Americans share this first name.
Is Kenji a common name?
Kenji is classified as "Rare" and is more popular than 96.5% of all first names in the SSA database. A total of 5,406 births have been registered with this name since 1880.
When was Kenji most popular?
Kenji reached peak popularity in 2022, when 336 babies were given this name. The average age of a living person named Kenji is approximately 20 years old, reflecting when the name was most commonly given.
Is Kenji a male name?
Kenji is predominantly male. 99.4% of people with this name are male. See the gender breakdown above for full details.
How many Kenji Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kenji Smith, Kenji Johnson, Kenji 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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