How Many People Are Named Ajax?
An estimated 413 people in the United States have the first name Ajax. It is almost exclusively a male name. The average bearer is 9 years old, and Ajax peaked in popularity in 2023 with 45 births that year.
Below you will find a full statistical profile of Ajax 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 Ajax paired with any surname.
Estimated Living Americans
413
About 1 in 829,914 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
9
years old
Peak Year
2023
45 births
Total Registered
416
since 1880
Gender Distribution for Ajax
Ajax is almost exclusively a male name. Out of 416 total births registered, 100.0% were male.
Ajax as a male name
Ranked #3,681 in 2024
30 male births in 2024
Peak: 2023 (45 births)
Ajax: Popularity Over Time
SSA records for Ajax span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2010s, when 223 babies were registered. While Ajax is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Ajax by Decade
How has Ajax 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.
Ajax by State
Ajax + Last Name Combinations
How many people share a full name with Ajax as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Ajax
Other first names starting with A with a similar number of bearers.
Ajax: Questions and Answers
How many people in the U.S. are named Ajax?
We estimate approximately 413 people named Ajax 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 829,914 Americans share this first name.
Is Ajax a common name?
Ajax is classified as "Very Rare" and is more popular than 82.6% of all first names in the SSA database. A total of 416 births have been registered with this name since 1880.
When was Ajax most popular?
Ajax reached peak popularity in 2023, when 45 babies were given this name. The average age of a living person named Ajax is approximately 9 years old, reflecting when the name was most commonly given.
Is Ajax a male name?
Ajax is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Ajax Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Ajax Smith, Ajax Johnson, Ajax 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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