How old is someone named Lucius?
The average Lucius is 32 years old.
Half of all living Luciuses are between 10 and 56. The average sits between a large young group and an older one, so many Luciuses are much younger than 32.
When was Lucius popular?
Few names are as steady as Lucius. It peaked in 2025, but babies have been named Lucius every year since records began, and 189 were in 2025.
Popular names of 2025 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 351 | 0 |
| 1910s | 1,029 | 0 |
| 1920s | 1,142 | under 100 |
| 1930s | 799 | 100 |
| 1940s | 777 | 330 |
| 1950s | 737 | 480 |
| 1960s | 513 | 410 |
| 1970s | 413 | 370 |
| 1980s | 354 | 330 |
| 1990s | 248 | 240 |
| 2000s | 886 | 870 |
| 2010s | 1,314 | 1,300 |
| 2020s | 927 | 920 |
How many Luciuses are still alive?
About 5,400 Luciuses are alive in the US today. That's 53% of the roughly 10,000 babies named Lucius since 1880.
Roughly half of all Luciuses ever born are still living.
What generation is the name Lucius?
About one in three living Luciuses are in Gen Alpha, born in 2013 or later.
Is Lucius an old name?
Somewhat. Lucius is older than 55 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Lucius will be 30 in 2056, about the same as today.
Is Lucius a boy or girl name?
Almost entirely boys: over 99.9% of living Luciuses are men.
Names the same age as Lucius
NAME TWIN
Lucius's name twin is Henry. Of all 3,713 names on AgeByName, Henry's age curve is the closest match to Lucius's: 90% alike.
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Questions about the name Lucius
How old is the average Lucius?
The average Lucius in the US is 32 years old. The median is 20, so half are older and half younger.
How many people are named Lucius?
About 5,400 Luciuses are alive in the US today, out of roughly 10,000 babies given the name since 1880.
When was the name Lucius most popular?
In 2025, when about 190 baby boys were named Lucius.
Is Lucius a Gen Alpha name?
Partly. Gen Alpha are the largest group, about 35% of living Luciuses, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this