How old is someone named Isabelle?
The average Isabelle is 18 years old.
Half of all living Isabelles are between 10 and 23.
When was Isabelle popular?
Isabelle was popular around 1908, faded for decades, and is back: 1,825 babies got the name in 2025.
Popular names of 2007 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 2,514 | 0 |
| 1910s | 7,255 | 0 |
| 1920s | 6,964 | 100 |
| 1930s | 2,761 | 500 |
| 1940s | 1,470 | 810 |
| 1950s | 1,028 | 800 |
| 1960s | 817 | 720 |
| 1970s | 465 | 440 |
| 1980s | 692 | 670 |
| 1990s | 7,276 | 7,200 |
| 2000s | 32,891 | 33,000 |
| 2010s | 28,507 | 28,000 |
| 2020s | 12,160 | 12,000 |
How many Isabelles are still alive?
About 84,000 Isabelles are alive in the US today. That's 78% of the roughly 110,000 babies named Isabelle since 1880.
Most Isabelles ever born are still alive.
What generation is the name Isabelle?
About half of living Isabelles are in Gen Z, born between 1997 and 2012.
Is Isabelle an old name?
Not really. Isabelle is younger than 74 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Isabelle will be 34 in 2056, so the name is getting older.
Is Isabelle a boy or girl name?
Almost entirely girls: over 99.9% of living Isabelles are women.
Names the same age as Isabelle
NAME TWIN
Isabelle's name twin is Riley. Of all 3,713 names on AgeByName, Riley's age curve is the closest match to Isabelle's: 92% alike.
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Questions about the name Isabelle
How old is the average Isabelle?
The average Isabelle in the US is 18 years old. The median is 17, so half are older and half younger.
How many people are named Isabelle?
About 84,000 Isabelles are alive in the US today, out of roughly 110,000 babies given the name since 1880.
When was the name Isabelle most popular?
In 2007, when about 4,100 baby girls were named Isabelle.
Is Isabelle a Gen Z name?
Yes. About 54% of living Isabelles are in Gen Z, born between 1997 and 2012.
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