How old is someone named Jonas?
The average Jonas is 24 years old.
Half of all living Jonases are between 11 and 31.
When was Jonas popular?
Jonas was popular around 1880, faded for decades, and is back: 476 babies got the name in 2025.
Popular names of 2008 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 238 | 0 |
| 1910s | 634 | 0 |
| 1920s | 744 | 0 |
| 1930s | 563 | under 100 |
| 1940s | 569 | 240 |
| 1950s | 621 | 410 |
| 1960s | 760 | 620 |
| 1970s | 1,875 | 1,700 |
| 1980s | 2,389 | 2,200 |
| 1990s | 2,717 | 2,600 |
| 2000s | 7,280 | 7,200 |
| 2010s | 6,467 | 6,400 |
| 2020s | 3,277 | 3,300 |
How many Jonases are still alive?
About 25,000 Jonases are alive in the US today. That's 87% of the roughly 29,000 babies named Jonas since 1880.
Most Jonases ever born are still alive.
What generation is the name Jonas?
About two in five living Jonases are in Gen Z, born between 1997 and 2012.
Is Jonas an old name?
Not really. Jonas is younger than 62 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Jonas will be 35 in 2056, so the name is aging slowly.
Is Jonas a boy or girl name?
Almost entirely boys: 99.9% of living Jonases are men.
Names the same age as Jonas
NAME TWIN
Jonas's name twin is Israel. Of all 3,713 names on AgeByName, Israel's age curve is the closest match to Jonas's: 90% alike.
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Questions about the name Jonas
How old is the average Jonas?
The average Jonas in the US is 24 years old. The median is 19, so half are older and half younger.
How many people are named Jonas?
About 25,000 Jonases are alive in the US today, out of roughly 29,000 babies given the name since 1880.
When was the name Jonas most popular?
In 2008, when about 1,300 baby boys were named Jonas.
Is Jonas a Gen Z name?
Partly. Gen Z are the largest group, about 41% of living Jonases, 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