How Many People Are Named Trajan?
An estimated 777 people in the United States have the first name Trajan. It is almost exclusively a male name. The average bearer is 20 years old, and Trajan peaked in popularity in 1999 with 141 births that year.
Below you will find a full statistical profile of Trajan 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 Trajan paired with any surname.
Estimated Living Americans
777
About 1 in 441,125 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
20
years old
Peak Year
1999
141 births
Total Registered
787
since 1880
Gender Distribution for Trajan
Trajan is almost exclusively a male name. Out of 787 total births registered, 100.0% were male.
Trajan as a male name
Ranked #7,672 in 2024
11 male births in 2024
Peak: 1999 (141 births)
Trajan: Popularity Over Time
SSA records for Trajan span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 319 babies were registered. Trajan has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Trajan by Decade
How has Trajan 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.
Trajan by State
Birth registrations for Trajan span all 11 states and territories in the SSA database. The highest counts are in California, North Carolina, Texas. The lowest are in Washington, Virginia, Kentucky. On average, about 12 Trajans were registered per state.
Trajan + Last Name Combinations
How many people share a full name with Trajan as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Trajan
Other first names starting with T with a similar number of bearers.
Trajan: Questions and Answers
How many people in the U.S. are named Trajan?
We estimate approximately 777 people named Trajan 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 441,125 Americans share this first name.
Is Trajan a common name?
Trajan is classified as "Very Rare" and is more popular than 88.4% of all first names in the SSA database. A total of 787 births have been registered with this name since 1880.
When was Trajan most popular?
Trajan reached peak popularity in 1999, when 141 babies were given this name. The average age of a living person named Trajan is approximately 20 years old, reflecting when the name was most commonly given.
Is Trajan a male name?
Trajan is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Trajan Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Trajan Smith, Trajan Johnson, Trajan 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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