How Many People Are Named Legion?
An estimated 350 people in the United States have the first name Legion. It is almost exclusively a male name. The average bearer is 10 years old, and Legion peaked in popularity in 2021 with 27 births that year.
Below you will find a full statistical profile of Legion 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 Legion paired with any surname.
Estimated Living Americans
350
About 1 in 979,298 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
10
years old
Peak Year
2021
27 births
Total Registered
353
since 1880
Gender Distribution for Legion
Legion is almost exclusively a male name. Out of 353 total births registered, 100.0% were male.
Legion as a male name
Ranked #7,508 in 2024
11 male births in 2024
Peak: 2021 (27 births)
Legion: Popularity Over Time
SSA records for Legion span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2010s, when 211 babies were registered. While Legion is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Legion by Decade
How has Legion 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.
Legion by State
Legion + Last Name Combinations
How many people share a full name with Legion as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Legion
Other first names starting with L with a similar number of bearers.
Legion: Questions and Answers
How many people in the U.S. are named Legion?
We estimate approximately 350 people named Legion 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 979,298 Americans share this first name.
Is Legion a common name?
Legion is classified as "Very Rare" and is more popular than 80.9% of all first names in the SSA database. A total of 353 births have been registered with this name since 1880.
When was Legion most popular?
Legion reached peak popularity in 2021, when 27 babies were given this name. The average age of a living person named Legion is approximately 10 years old, reflecting when the name was most commonly given.
Is Legion a male name?
Legion is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Legion Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Legion Smith, Legion Johnson, Legion 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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