How Many People Are Named Lucius?
An estimated 5,510 people in the United States have the first name Lucius. It is almost exclusively a male name. The average bearer is 36 years old, and Lucius peaked in popularity in 2022 with 161 births that year.
Below you will find a full statistical profile of Lucius 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 Lucius paired with any surname.
Estimated Living Americans
5,510
About 1 in 62,206 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
36
years old
Peak Year
2022
161 births
Total Registered
9,918
since 1880
Gender Distribution for Lucius
Lucius is almost exclusively a male name. Out of 9,918 total births registered, 100.0% were male.
Lucius as a male name
Ranked #1,385 in 2024
135 male births in 2024
Peak: 2022 (161 births)
Lucius: Popularity Over Time
SSA records for Lucius span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 2010s, when 1,314 babies were registered. While Lucius is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Lucius by Decade
How has Lucius 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.
Lucius by State
Birth registrations for Lucius span all 31 states and territories in the SSA database. The highest counts are in Georgia, South Carolina, Florida. The lowest are in New Jersey, Indiana, Connecticut. On average, about 146 Luciuss were registered per state.
Lucius + Last Name Combinations
How many people share a full name with Lucius as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lucius
Other first names starting with L with a similar number of bearers.
Lucius: Questions and Answers
How many people in the U.S. are named Lucius?
We estimate approximately 5,510 people named Lucius 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 62,206 Americans share this first name.
Is Lucius a common name?
Lucius is classified as "Rare" and is more popular than 96.7% of all first names in the SSA database. A total of 9,918 births have been registered with this name since 1880.
When was Lucius most popular?
Lucius reached peak popularity in 2022, when 161 babies were given this name. The average age of a living person named Lucius is approximately 36 years old, reflecting when the name was most commonly given.
Is Lucius a male name?
Lucius is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Lucius Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lucius Smith, Lucius Johnson, Lucius 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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