How old is someone named Liam?
The average Liam is 11 years old.
Half of all living Liams are between 5 and 14.
When was Liam popular?
Liam is a modern favorite: it climbed through the 2000s and hit its high in 2024. 20,846 babies got the name in 2025.
Popular names of 2024 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1940s | 5 | 0 |
| 1950s | 117 | under 100 |
| 1960s | 400 | 330 |
| 1970s | 784 | 710 |
| 1980s | 1,527 | 1,400 |
| 1990s | 11,919 | 12,000 |
| 2000s | 45,047 | 44,000 |
| 2010s | 174,261 | 170,000 |
| 2020s | 125,025 | 120,000 |
How many Liams are still alive?
About 360,000 Liams are alive in the US today. That's over 99% of the roughly 360,000 babies named Liam since 1947.
Nearly every Liam ever born is still alive, because almost all of them are young.
What generation is the name Liam?
Three in four living Liams are in Gen Alpha, born in 2013 or later.
- Millennial 2%
- Gen Z 26%
- Gen Alpha 72%
Is Liam an old name?
No. Liam is one of the youngest names around: younger than 93 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Liam will be 24 in 2056, so the name is aging slowly.
Is Liam a boy or girl name?
Almost entirely boys: 99.8% of living Liams are men.
Names the same age as Liam
NAME TWIN
Liam's name twin is Judah. Of all 3,713 names on AgeByName, Judah's age curve is the closest match to Liam's: 94% alike.
Compare: Liam vs. Noah · William vs. Liam
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Questions about the name Liam
How old is the average Liam?
The average Liam in the US is 11 years old. The median is 9, so half are older and half younger.
How many people are named Liam?
About 360,000 Liams are alive in the US today, out of roughly 360,000 babies given the name since 1947.
When was the name Liam most popular?
In 2024, when about 22,000 baby boys were named Liam.
Is Liam a Gen Alpha name?
Yes. About 72% of living Liams 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