How old is someone named Isai?
The average Isai is 19 years old.
Half of all living Isais are between 10 and 25.
When was Isai popular?
Isai is a modern favorite: it climbed through the 2000s and hit its high in 2007. 197 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 |
|---|---|---|
| 1960s | 6 | under 100 |
| 1970s | 48 | under 100 |
| 1980s | 352 | 330 |
| 1990s | 1,218 | 1,200 |
| 2000s | 2,633 | 2,600 |
| 2010s | 2,031 | 2,000 |
| 2020s | 1,097 | 1,100 |
How many Isais are still alive?
About 7,300 Isais are alive in the US today. That's 98% of the roughly 7,400 babies named Isai since 1966.
Nearly every Isai ever born is still alive, because almost all of them are young.
What generation is the name Isai?
About half of living Isais are in Gen Z, born between 1997 and 2012.
- Gen X under 1%
- Millennial 14%
- Gen Z 52%
- Gen Alpha 33%
Is Isai an old name?
Not really. Isai is younger than 74 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Isai will be 33 in 2056, so the name is aging slowly.
Is Isai a boy or girl name?
Almost entirely boys: 99.4% of living Isais are men.
Names the same age as Isai
NAME TWIN
Isai's name twin is Areli. Of all 3,713 names on AgeByName, Areli's age curve is the closest match to Isai's: 93% alike.
Think you can guess a Linda's age?
Ten names, one slider each. Share your score.
Questions about the name Isai
How old is the average Isai?
The average Isai in the US is 19 years old. The median is 18, so half are older and half younger.
How many people are named Isai?
About 7,300 Isais are alive in the US today, out of roughly 7,400 babies given the name since 1966.
When was the name Isai most popular?
In 2007, when about 330 baby boys were named Isai.
Is Isai a Gen Z name?
Yes. About 52% of living Isais 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