How old is someone named Lillianna?
The average Lillianna is 14 years old.
Half of all living Lilliannas are between 9 and 18.
When was Lillianna popular?
Lillianna rose fast and peaked in 2011, then faded almost as fast. 71% of all Lilliannas were born within 15 years of each other.
Popular names of 2011 · The most popular names of the 2010s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1980s | 21 | under 100 |
| 1990s | 247 | 240 |
| 2000s | 1,927 | 1,900 |
| 2010s | 3,291 | 3,300 |
| 2020s | 1,097 | 1,100 |
How many Lilliannas are still alive?
About 6,500 Lilliannas are alive in the US today. That's over 99% of the roughly 6,600 babies named Lillianna since 1985.
Nearly every Lillianna ever born is still alive, because almost all of them are young.
What generation is the name Lillianna?
About half of living Lilliannas are in Gen Alpha, born in 2013 or later.
- Millennial 2%
- Gen Z 48%
- Gen Alpha 50%
Is Lillianna an old name?
No. Lillianna is one of the youngest names around: younger than 86 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Lillianna will be 32 in 2056, so the name is getting older.
Is Lillianna a boy or girl name?
Almost entirely girls: over 99.9% of living Lilliannas are women.
Names the same age as Lillianna
NAME TWIN
Lillianna's name twin is Samiyah. Of all 3,713 names on AgeByName, Samiyah's age curve is the closest match to Lillianna's: 95% alike.
Other spellings: Liliana (17) · Lilliana (14) · Lilyana (13) · Lilianna (13) · Lilyanna (13)
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Questions about the name Lillianna
How old is the average Lillianna?
The average Lillianna in the US is 14 years old. The median is 13, so half are older and half younger.
How many people are named Lillianna?
About 6,500 Lilliannas are alive in the US today, out of roughly 6,600 babies given the name since 1985.
When was the name Lillianna most popular?
In 2011, when about 400 baby girls were named Lillianna.
Is Lillianna a Gen Alpha name?
Yes. About 50% of living Lilliannas are in Gen Alpha, born in 2013 or later.
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